@article {1629,
	title = {Effects of long-term exposure to ammonium sulfate particles on growth and gas exchange rates of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica seedlings.},
	journal = {Atmospheric Environment},
	year = {2014},
	pages = {1-8},
	author = {Yamaguchi, M. and Otani, Y. and Li, P. and Nagao, H. and Lenggoro, I.W. and Ishida, A. and Yazaki, K. and Nogucki, K. and Nakaba, S. and Yamane, K. and Kuroda, K. and Sano, Y. and Funada, R. and Izuta, T.}
}
@article {1702,
	title = {Inertia in an ombrotrophic bog ecosystem in response to 9 years{\textquoteright} realistic perturbation by wet deposition of nitrogen, separated by form.},
	journal = {Global Change Biology},
	volume = {20},
	year = {2014},
	pages = {566-580},
	keywords = {ammonium, atmospheric nitrogen, boreal mire, calluna, calluna-vulgaris, chronology, cover, critical loads, dry heathland, field manipulation, global change, growth, n deposition, nitrate, peatland, plant, sphagnum bogs, sphagnum capillifolium, vegetation},
	author = {Sheppard, L. J. and Leith, I. D. and Mizunuma, T. and Leeson, S. and Kivimaki, S. and Cape, J. N. and van Dijk, N. and Leaver, D. and Sutton, M. A. and Fowler, D. and Van den Berg, L. J. L. and Crossley, A. and Field, C. and Smart, S.}
}
@article {1568,
	title = {Inertia in an ombrotrophic bog ecosystem in response to nine years{\textquoteright} realistic perturbation by wet deposition of nitrogen, separated by form.},
	journal = {Global Change Biology},
	volume = {20},
	year = {2014},
	pages = {566-580},
	author = {Sheppard L.J. and Leith, I.D. and Mizunuma, T. and Leeson, S. and Kivimaki, S. and Cape, J.N. and van Dijk, N. and Leaver, D. and Sutton, M.A. and Fowler, D. and Van Den Berg, L.J.L. and Crossley, A. and Field, C. and Smart, S.}
}
@article {1518,
	title = {Recovery of macroinvertebrate species richness in acidified upland waters assessed with a field toxicity model},
	journal = {Ecological Indicators},
	volume = {37},
	year = {2014},
	pages = {341-350},
	author = {Stockdale, A. and Tipping, E. and Fjellheim, A. and Garmo, O.A. and Hildrew, A.G. and Lofts, S. and Monteith, D.T. and Ormerod, S.J. and Shilland, E.M.}
}
@article {1513,
	title = {Diatom-inference models for acid neutralizing capacity and nitrate based on 41 calibration lakes in the Sierra Nevada, California, USA.},
	journal = {Journal of Paleolimnology},
	volume = {50},
	year = {2013},
	pages = {159-174},
	author = {Sickman, J.O. and Bennett, D.M. and Lucero, D.M. and Whitmore, T.J. and Kenney, W.F.}
}
@article {1679,
	title = {Inertia in an ombrotrophic bog ecosystem in response to nine years{\textquoteright} realistic perturbation by wet deposition of nitrogen, separated by form},
	journal = {Global change Biology },
	year = {2013},
	author = {Sheppard, L.J. and Leith, I.D. and Mizunuma, T. and Leeson, S. and Kivimaki, S.K. and Cape, J.N. and van Dijk, N. and Leaver, D. and Sutton, M.A. and Fowler, D. and Van Den Berg, L.J.L. and Crossley, A. and Field, C. and Smart, S.M.}
}
@article {1569,
	title = {PK additions modify the effects of N dose and form on species composition, species litter chemistry and peat chemistry in a Scottish peatland.},
	journal = {Biogeochemistry},
	volume = {116},
	year = {2013},
	pages = {39-53},
	author = {Sheppard, L.J. and Leith, I.D. and van Dijk, N. and Leeson, S. and Mizunuma, T. and De Bakker, R. and Elustando, D.E.V. and Gomez, H.G.}
}
@article {1325,
	title = {Impacts of atmospheric nitrogen deposition: responses of multiple plant and soil parameters across contrasting ecosystems in long-term field experiments},
	journal = {Global Change Biology},
	volume = {18},
	year = {2012},
	pages = {1197-1215},
	author = {Phoenix, G.K. and Emmett, B.A. and Britton, A.J. and Caporn, S.J.M. and Dise, N.B. and Helliwell, R. and Jones, M.L.M. and Leake, J.R. and Leith, I.D. and Sheppard, L.J. and Sowerby, A. and Pilkington, M.G. and Rowe, E.C. and Ashmore MR and Power, S.A.}
}
@article {1627,
	title = {Tree-ring responses in Araucaria araucana to two major eruptions of Lonquimay Volcano (Chile).},
	journal = {Trees},
	volume = {26},
	year = {2012},
	pages = {1805-1819},
	author = {Tognetti, R. and Lombardi, F. and Lasserre, B. and Battipaglia, G. and Saurer, M. and Cherubini, P. and Marchetti, M.}
}
@article {1562,
	title = {Climatic modifiers of the response to N deposition in peat-forming Sphagnum mosses: a meta-analysis.},
	journal = {New Phytologist},
	volume = {191},
	year = {2011},
	pages = {496-507},
	author = {Limpens, J. and Sheppard, L.J. and Leith, I.D.}
}
@article {1279,
	title = {Dry deposition of ammonia gas drives species change faster than wet deposition of ammonium ions: evidence from a long-term field manipulation},
	journal = {Global Change Biology},
	volume = {17 (12)},
	year = {2011},
	pages = {3589-3607},
	author = {Sheppard, L.J. and Leith, I.D. and Mizunuma, T. and Cape, J.N and Crossley, A. and Leeson S. and Sutton, M.A. and Fowler, D. and van Dijk, N.}
}
@article {1675,
	title = {Ecosystem responses to reduced and oxidised nitrogen inputs in European terrestrial habitats},
	journal = { Environmental Pollution},
	volume = {159 },
	year = {2011},
	pages = {665-676},
	author = {Stevens, C.J. and Manning, P. and Van Den Berg, L.J.L. and De Graaf, M.C.C. and Wamelink, G.W.W. and Boxman, A.W. and Bleeker, A. and Vergeer, P. and Arroniz-Crespo, M. and Limpens, J. and Lamerse, L.P.M. and Bobbink, R. and Dorland, E.}
}
@article {1578,
	title = {The legacy of enhanced N and S deposition as revealed by the combined analysis of δ13C, δ18O and δ15N in tree rings.},
	journal = {Global Change Biology},
	volume = {17},
	year = {2011},
	pages = {1946-1962},
	author = {Guerrieri, R. and Mencuccini, M. and Sheppard, L.J. and Saurer, M. and Perks, M.P. and Levy, P. and Sutton, M.A. and Borghetti, M. and Grace, J.}
}
@article {1334,
	title = {The legacy of enhanced N and S deposition as revealed by thecombined analysis of delta 13C, delta 18O and delta 15N in treerings},
	journal = {Global Change Biology},
	volume = {17},
	year = {2011},
	pages = {1946{\textendash}1962},
	author = {Guerrieri, R. and Mencuccini, M. and Sheppard, L.J. and Saurer, M. and Perks,M.P. and Levy, P. and Sutton, M.A. and Borghetti, M. and Grace, J.}
}
@inbook {1285,
	title = {Moninea Bog - Case study of atmospheric ammonia impacts on a Special Area of Conservation},
	booktitle = {In: Hicks, W.K.; Whitfield, C.P.; Bealey, W.J.; Sutton, M.A., (eds.) Nitrogen deposition and Natura 2000: Science and practice in determining environmental impacts},
	year = {2011},
	pages = {59-71},
	publisher = {COST Office - European Cooperation in Science and Technology,.},
	organization = {COST Office - European Cooperation in Science and Technology,.},
	author = {Sutton, M.A. and Leith, I.D. and Bealey, W. J and van Dijk, N. and Tang, Y.S.}
}
@article {1556,
	title = {Nitrogen concentrations in mosses indicate the spatial distribution of atmospheric nitrogen deposition in Europe.},
	journal = {Environmental Pollution},
	volume = {159},
	year = {2011},
	pages = {2852-2860},
	author = {Harmens, H. and Norris, D.A. and Cooper, D.M. and Mills, G. and Steinnes, E. and Kubin, E. and Thoni, L. and Aboal, J.R. and Alber, R. and Carballeira, A. and Coskun, M. and De Temmerman, L. and Frolova, M. and Frontasyeva, M. and Gonzales-Miqueo, L. and Jeran, Z. and Leblond, S. and Liiv, S. and Mankovska, B. and Pesch, R. and Poikolainen, J. and Ruhling, A. and Santamaria, J.M. and Simoneie, P. and Schroder, W. and Suchara, I. and Yurukova, L. and Zechmeister, H.G.}
}
@article {1303,
	title = {Physiological and morphological effects of long-term ammonium or nitrate deposition on green and red (shade and open grown) Sphagnum capillifolium},
	journal = {Environmental and Experimental Botany},
	volume = {72},
	year = {2011},
	pages = {140-148},
	author = {Manninen, S. and Woods, C. and Leith, I.D. and Sheppard, L.J.}
}
@article {1517,
	title = {Contribution of acidification and eutrophication to declines in species richness of calcifuges grasslands along a gradient of atmospheric nitrogen deposition.},
	journal = {Functional Ecology},
	volume = {24},
	year = {2010},
	pages = {478-484},
	author = {Stevens, C.J. and Thompson, K. and Grime, J.P. and Long, C.J. and Gowing, D.J.G.}
}
@article {1566,
	title = {First Europe-wide correlation analysis identifying factors best explaining the total nitrogen concentration in mosses.},
	journal = {Atmospheric Environment},
	volume = {44},
	year = {2010},
	pages = {3485-3491},
	author = {Schroder, W. and Holy, M. and Pesch, R. and Harmens, H. and Fagerli, H. and Alber, R. and Coskun, M. and De Temmerman, L. and Frolova, M. and Gonzalez-Miqueo, L. and Jeran, Z. and Kubin, E. and Leblond, S. and Liiv, S. and Mankovska, B. and Piispanen, J. and Santamaria, J.M. and Simoneie, P. and Suchara, I. and Yurokova, L. and Thoni, L. and Zechmeister, H.G.}
}
@article {1475,
	title = {Long-term variation in the littoral food web of an acidified mountain lake.},
	journal = {Global Change Biology},
	volume = {16},
	year = {2010},
	pages = {3133-3143},
	author = {Layer, K. and Hildrew, A. and Monteith, D.O.N. and Woodward, G.U.Y.}
}
@article {1561,
	title = {The role of Sphagnum mosses in the methane cycling of a boreal mire.},
	journal = {Ecology},
	volume = {91},
	year = {2010},
	pages = {2356-2365},
	author = {Larmola, T. and Tuittila, E.S. and Tiirola, M. and Nykanen, H. and Martikainen, P.J. and Yrjala, K. and Tuomivirta, T. and Fritze, H.}
}
@article {1432,
	title = {Use of sap flow measurements to validate stomatal functions for mature beech (Fagus sylvatica) in view of ozone uptake calculations. },
	journal = {Environmental Pollution},
	volume = {158},
	year = {2010},
	pages = {2954-2963},
	author = {Braun, S. and Schindler, C. and Leuzinger, S.}
}
@article {1283,
	title = {Evidence for changing the critical level for ammonia},
	journal = {Environmental Pollution },
	volume = {157},
	year = {2009},
	pages = {1033-1037},
	author = {Cape, J.N and van der Eerden, L.J. and Sheppard, L.J. and Leith, I.D. and Sutton, M.A.}
}
@article {1480,
	title = {Quantifying the impact of current and future tropospheric ozone on tree biomass, growth, physiology and biochemistry: a quantitative meta-analysis.},
	journal = {Global Change Biology},
	volume = {15},
	year = {2009},
	pages = {396-424},
	author = {Wittig, V.E. and Ainsworth, E.A. and Naidu, S.L. and Karnosky, D.F. and Long, S.P.}
}
@article {86,
	title = {Are enchytraeid worms (Oligochaeta) sensitive indicators of Ammonia-N impacts on an Ombrotrophic Bog?},
	journal = {European Journal of Soil Biology.},
	volume = {44},
	year = {2008},
	pages = {101-108},
	author = {Prendergast, M. T. and Cole, L. and Standen, V. and Rees, R. and Parker, J. and Leith, I. and Sheppard, L.J.}
}
@article {1462,
	title = {Base cation depletion, eutrophication and acidification of species-rich grasslands in response to long-term simulated nitrogen deposition.},
	journal = {Environmental Pollution},
	volume = {155},
	year = {2008},
	pages = {336-349},
	author = {Horswill, P. and O{\textquoteright}Sullivan, O. and Phoenix, G.K. and Lee, J.A. and Leake, J.R.}
}
@article {1421,
	title = {Bryophyte physiological responses to, and recovery from, long-term nitrogen deposition and phosphorus fertilisation in acidic grassland.},
	journal = {New Phytologist },
	volume = {180},
	year = {2008},
	pages = {864-874},
	author = {Arroniz-Crespo, M. and Leake, J.R. and Horton, P. and Phoenix, G.K.}
}
@article {220,
	title = {Review and implementation study of biomonitoring for assessment of air quality outcomes},
	number = {Science Report - SC030175/SR2},
	year = {2008},
	pages = {170pp},
	institution = {Environment Agency},
	address = {Bristol},
	author = {Bealey, W. J and Long, S and Spurgeon, D. J and Leith, I. and Cape, J.N}
}
@article {1286,
	title = {Short-term flux chamber experiment to quantify the  deposition of gaseous 15N-NH3 to Calluna vulgaris},
	journal = {Agricultural and Forest Meteorology, },
	volume = {148 (6-7)},
	year = {2008},
	pages = {893-901},
	author = {Jones, M.R. and Raven, J.A. and Leith, I.D. and Cape, J.N and Smith, R.I. and Fowler, D.}
}
@article {87,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under {\textquoteright}real world conditions{\textquoteright}},
	journal = {Environmental Pollution},
	volume = {154},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {1280,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under real world conditions},
	journal = {Environmental Pollution},
	volume = {154 (3)},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {1609,
	title = {The use of biomonitoring tools to detect ecosystem response following exposure to contaminants emitted from a regulated industrial source.},
	year = {2008},
	institution = {Environment Agency},
	address = {Bristol},
	issn = {SC030175/SR3},
	author = {Long, S. and Lister, L. and Hankard, P. and Rothery, P. and Ainsworth, G. and Rowland, P. and Walker, L. and Wright, J. and Turk, T. and Bealey, B. and Leith, I. and Cape, N. and Spurgeon, D.}
}
@article {1548,
	title = {Comparative cryptogam ecology: a review of bryophyte and lichen traits that drive biogeochemistry.},
	journal = {Annals of Botany},
	volume = {99},
	year = {2007},
	pages = {987-1001},
	author = {Cornelissen, J.H.C. and Lang, S.I. and Soudzilovskaia, N.A. and During, H.J.}
}
@article {1307,
	title = {Potassium and phosphorus additions modify the response of Sphagnum capillifolium growing on a Scottish ombrotrophic bog to enhanced nitrogen deposition},
	journal = {Applied Geochemistry},
	volume = {22},
	year = {2007},
	pages = {1111{\textendash}1121},
	author = {Carfrae, J. A. and Sheppard, L.J. and Raven, J.A. and Leith, I.D. and Crossley, A.}
}
@article {1277,
	title = {Diagnostic indicators of elevated nitrogen deposition},
	journal = {Environmental Pollution},
	volume = {144},
	year = {2006},
	author = {Pitcairn, C.E.R. and Fowler D. and Leith, I.D. and Sheppard, L.J. and Tang, Y.S. and Sutton, M.A. and Famulari D.}
}
@article {1482,
	title = {Extraordinary drought of 2003 overrules ozone impact on adult beech trees (Fagus sylvatica).},
	journal = {Trees},
	volume = {20},
	year = {2006},
	pages = {539-548},
	author = {Low, M. and Herbinger, K. and Nunn, A.J. and Haberle, K.H. and Leuchner, M. and Heerdt, C. and Werner, H. and Wipfler, P. and Pretzsch, H. and Tausz, M. and Matyssek, R.}
}
@article {1426,
	title = {Growth and nutritive quality of Poa pratensis as influence by ozone and competition.},
	journal = {Environmental Pollution},
	volume = {142},
	year = {2006},
	pages = {109-115},
	author = {Bender, J. and Muntifering, R.B. and Lin, J.C. and Weigel, H.J.}
}
@article {1623,
	title = {Atmospheric aerosol light scattering and surface wetness influence the diurnal pattern of net ecosystem exchange in a semi-arid ponderosa pine plantation.},
	journal = {Agricultural and Forest Meteorology},
	volume = {129},
	year = {2005},
	pages = {69-83},
	author = {Misson, L. and Lunden, M. and McKay, M. and Goldstein, A.H.}
}
@article {1610,
	title = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	year = {2005},
	institution = {JNCC},
	issn = {386},
	author = {Leith, I. and van Dijk, N. and Pitcairn, C.E.R. and Wolseley, P.A. and Whitfield, C.P. and Sutton, M.A.}
}
@article {1476,
	title = {The ecology of acidification and recovery: changes in herbivore-algal food web linkages across a stream pH gradient.},
	journal = {Environmental Pollution},
	volume = {137},
	year = {2005},
	pages = {103-118},
	author = {Ledger, M.E. and Hildrew, A.G.}
}
@inbook {1278,
	title = {Refining and testing the Ellenberg Index  biomonitoring method at the intensive sites},
	year = {2005},
	pages = {230},
	publisher = {JNCC},
	organization = {JNCC},
	edition = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	chapter = {4},
	author = {Pitcairn, C.E.R. and Leith, I.D. and van Dijk N. and Sutton, M.A.}
}
@article {1121,
	title = {A study of the epiphytic communities of Atlantic oak woods along an atmospheric nitrogen deposition gradient},
	journal = {Journal of Ecology },
	volume = {93},
	year = {2005},
	pages = {482-492},
	author = {Mitchell, R. and Truscot, A. and Leith, I. and Cape, J. and van Dijk, N. and Tang, Y. and Fowler, D. and Sutton, M.A.}
}
@article {1281,
	title = {An Automated Wet Deposition System to Compare the Effects of Reduced and Oxidised N on Ombrotrophic Bog Species: Practical Considerations},
	journal = {Water, Air and Soil Pollution: Focus},
	volume = {4 (6)},
	year = {2004},
	pages = {197-205},
	author = {Sheppard, L.J. and Crossley, A. and Leith, I.D. and Hargreaves, K.J. and Carfrae, J. and van Dijk, N. and Cape, J.N and Sleep, D. and Fowler, D. and Raven, J.A.}
}
@article {253,
	title = {Bioindicator and biomonitoring methods for assessing the effects of atmospheric nitrogen on statutory nature conservation sites},
	year = {2004},
	address = {Peterborough},
	author = {Sutton, M.A. and Pitcairn, C.E.R. and Leith, I.D. and van Dijk, N. and Tang, Y.S. and Skiba, U. and Smart, S. and Mitchell, R. and Wolseley, P. and James, P. and Purvis, W. and Fowler, D.},
	editor = {Sutton, M.A. and Pitcairn, C.E.R. and Whitfield, C.P.}
}
@article {1567,
	title = {Effects of enhanced N deposition on Cladonia portentosa; results from a field manipulation study.},
	number = {525 ISSN 0967-876X},
	year = {2004},
	pages = {51-62},
	institution = {English Nature},
	address = {Peterborough},
	author = {Sheppard, L.I. and Leith, I.D. and Crossley, A.}
}
@article {1564,
	title = {Growth and tissue nitrogen of epiphytic Atlantic bryophytes: effects of increased and decreased atmospheric N deposition.},
	journal = {Functional Ecology},
	volume = {18},
	year = {2004},
	pages = {322-329},
	author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Cape, J.N. and van Dijk, N. and Tang, Y.S. and Fowler, D. and Sutton, M.A.}
}
@article {1284,
	title = {Quantifying dry  NH3 release system to ombrotrophic bog from an automated NH3 field release system},
	journal = {Water,  Air, and Soil Pollution: Focus},
	volume = {4},
	year = {2004},
	pages = {207-218.},
	author = {Leith, I.D. and Sheppard, L.J. and Fowler, D. and Cape, J.N and Jones, M.R. and Crossley, A. and Hargreaves, K.J. and Tang, Y.S. and Theobald, M.R. and Sutton, M.A.}
}
@article {1506,
	title = {Silver birch and climate change: variable growth and carbon allocation responses to elevated concentrations of carbon dioxide and ozone.},
	journal = {Tree Physiology},
	volume = {24},
	year = {2004},
	pages = {1227-1237},
	author = {Riikonen, J. and Lindsberg, M.M. and Holopainen, T. and Oksanen, E. and Lappi, J. and Peltonen, P. and Vapaavuori, E.}
}
@article {1326,
	title = {Effects of enhanced nitrogen deposition and phosphorus limitation on nitrogen budgets of semi-natural grasslands},
	journal = {Global Change Biology},
	volume = {9},
	year = {2003},
	pages = {1309-1321},
	author = {Phoenix, G.K. and Booth, R.E. and Leake, J.R. and Read, D.J. and Grime, J.P. and Lee, J.A.}
}
@article {1306,
	title = {Expansion of Sphagnum fallax in bogs: striking the balance between N and P availability},
	journal = {Journal of Bryology},
	volume = {25},
	year = {2003},
	pages = {83-90},
	author = {Limpens, J. and Tomassen, H.B.M. and Berendse, F.}
}
@book {1579,
	title = {Impact of atmospheric nitrogen deposition on epiphytes in Atlantic oakwoods.},
	year = {2003},
	author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Tang, Y.S. and van Dijk, N. and Smith, R.I. and Sutton, M.A.}
}
@article {1104,
	title = {The interactions between plant growth, vegetation structure and soil processes in semi-natural acidic and calcareous grasslands receiving long-term inputs of simulated pollutant nitrogen deposition},
	journal = {Environmental Pollution},
	volume = {121},
	year = {2003},
	author = {Carroll, J.A. and Caporn, S.J.M and Johnson, D. and Morecroft, M.D. and Lee, J.A.}
}
@article {1305,
	title = {Stimulated growth of Betula pubescens and Molinia caerulea on ombrotrophic bogs: role of high levels of atmospheric nitrogen deposition},
	journal = {Journal of Ecology},
	volume = {91},
	year = {2003},
	pages = {357-370},
	author = {Tomassen, H.B.M. and Smolders, A.J.P. and Lamers,  L.P.M. and Roelofs, J.G.M.}
}
@article {2009,
	title = {Cadmium and zinc interactions and their transfer in soil-crop system under actual field conditions},
	journal = {Science of the Total Environment},
	year = {2002},
	pages = {187-195},
	author = {Nan, Z and Li, J and Zhang, J and Cheng, G}
}
@book {307,
	title = {Effects of oxidants at the biochemical, cell, and physiological levels, with particular reference to ozone},
	series = {Air Pollution and Plant Life},
	year = {2002},
	pages = {pp 69-88},
	publisher = {John Wiley and Sons Ltd.},
	organization = {John Wiley and Sons Ltd.},
	author = {Long, S.P. and Naidu, S.L.},
	editor = {Bell, J.N.B. and M. Treshow}
}
@inbook {1583,
	title = {Effects of sulphur dioxide.},
	booktitle = {Air Pollution and plant life},
	year = {2002},
	pages = {135-162},
	publisher = {John Wiley \& Sons},
	organization = {John Wiley \& Sons},
	edition = {2nd},
	address = {Chichester},
	author = {Legge, A.H. and Krupa, S.V.}
}
@article {1938,
	title = {Rice plant structural changes by addition of excess manganese},
	journal = {Journal of Plant Nutrition},
	year = {2002},
	pages = {287-296},
	author = {Lidon, F. C}
}
@article {781,
	title = {Biosphere-atmosphere interactions of ammonia with grasslands: experimental strategy and results from a new European initiative},
	journal = {Plant and Soil },
	volume = {228 (1)},
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@inbook {620,
	title = {Terrestrial ecosystem research in Europe: successes, challenges and policy},
	year = {2001},
	note = {Final Conference of the Terrestrial Ecosystem Research Initiative - Concerted Action (TERICA) Project ENV4-CT95-0051
Egmond aan Zee, the Netherlands, 20-23 June 1999. },
	publisher = {Directorate-General for Research},
	organization = {Directorate-General for Research},
	chapter = {Preliminary results of the BERI project: Effects of elevated CO2 and N deposition on plant dynamics and CH4 emissions of five},
	address = {Brussels.},
	author = {Hoosebeak, M.R. and van Breeman, N. and Wallen, B. and Rydin, H. and Lee, J.A. and Sivola, J. and Vasander, H. and Berendse, F. and Grosvernier, P. and Sutton, M.A. (Eds) and Moreno, J.M. (Eds) and Van der Putten, W.H. (Eds) and Struwe, S. (Eds)}
}
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	title = {Biodiversity - Global biodiversity scenarios for the year 2100},
	journal = {Science},
	volume = {287},
	year = {2000},
	pages = {1770-1774},
	keywords = {co2, fresh-water, future, limitation, threats},
	author = {Sala, O. E. and Chapin, F. S. and Armesto, J. J. and Berlow, E. and Bloomfield, J. and Dirzo, R. and Huber-Sanwald, E. and Huenneke, L. F. and Jackson, R. B. and Kinzig, A. and Leemans, R. and Lodge, D. M. and Mooney, H. A. and Oesterheld, M. and Poff, N. L. and Sykes, M. T. and Walker, B. H. and Walker, M. and Wall, D. H.}
}
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	journal = {Environmental Pollution},
	volume = {107},
	year = {2000},
	pages = {367-376},
	author = {Hicks, W.K. and Leith, I.D. and Woodin, S.J. and Fowler, D.}
}
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	author = {Caporn, S.J.M and Ashenden, T.W. and Lee, J.A.}
}
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}
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@conference {237,
	title = {Reinvasion of urban areas by black spot and tar spot},
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	year = {2000},
	address = {Birmingham},
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	author = {Chameides, W.L. and Yu, H. and Liu, S.C. and Bergin, M. and Zhou, X. and Mearns, L. and Wang, G. and Kiang, C.S. and Saylor, R.D. and Luo, C. and Huang, Y. and Steiner, A. and Giorgi, F.}
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@article {1999,
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	author = {Johnson, D. and Leake, J.R. and Lee, J.A.}
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	author = {Lee, J.A. and Caporn, S.J.M and Carroll, J. and Foot, J.P. and Johnson, D. and Potter, L. and Taylor, A.F.S. and Bates, J.W. (Eds) and Ashton, N.W. (Eds) and Ducken, J.G.}
}
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	volume = {102},
	year = {1998},
	pages = {349-361},
	chapter = {1},
	author = {Sutton, M.A. and Milford, C. and Dragosits, U. and Place, C.J. and Singles, R.J. and Smith, R.I. and Pitcairn, C.E.R. and Fowler, D. and Hill, J. and ApSimon, H.M. and Ross, C. and Hill, R. and Jarvis, S.C. and Pain, B.F. and Phillips, V.C. and Harrison, R. and Moss, D. and Webb, J. and Espenhahn, S.E. and Lee, D.S. and Hornung, M. and Ullyett, J. and Bull, K.R. and Emmett, B.A. and Lowe, J. and Wyers, G.P.}
}
@article {656,
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	author = {Lee, J.A. and Caporn, S.J.M}
}
@article {653,
	title = {Ecosystem research and the European Union policy needs},
	year = {1998},
	institution = {Universidad de Castilla-La Mancha},
	address = {Toledo, Spain},
	author = {Lawton, J.H. (Eds) and Moreno, J.M. (Eds) and Strewe, S. (Eds)}
}
@article {85,
	title = {The relationship between nitrogen deposition, species composition and foliar nitrogen concentrations in woodland flora in the vicinity of livestock farms.},
	journal = {Environmental Pollution },
	volume = {102},
	year = {1998},
	pages = {41-48},
	author = {Pitcairn, C.E.R. and Leith, I.D. and Sheppard, L.J. and Sutton, M.A. and Fowler, D. and Munro, R.C. and Tang, S. and Wilson, D.}
}
@article {1885,
	title = {Significance of soil properties for content and distribution of cadmium and lead in natural calcareous soils},
	journal = {Science of the Total Environment},
	year = {1998},
	pages = {217-226},
	author = {Sanchez-Camazano, M and Sanchez-Martin, M. J and Lorenzo, L. F}
}
@article {251,
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	journal = {Environmental Pollution},
	volume = {102},
	year = {1998},
	pages = {457-461},
	author = {Skiba, U. and Sheppard, L.J. and Pitcairn, C.E.R. and Leith, I.D. and Crossley, A. and van Dijk, S. and Kennedy, V.J. and Fowler, D.}
}
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	author = {Pyatt, F.B. and Lacy, D. and Pyatt, A.J.}
}
@article {203,
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}
@article {1329,
	title = {Natural vegetation responses to atmospheric nitrogen deposition - critical levels and loads of nitrogen for vegetation growing on contrasting native soils},
	year = {1997},
	institution = {University of Sheneld},
	address = {Sheneld},
	author = {Carroll, J.A. and Caporn, S.J.M. and Morecrof, M.D. and Lee, J.A. and Johnson, D. and Taylor, A. and Leake, J.R. and Campbell, C.D. and Cawley, L. and Lei, Y. and Read, D.J.}
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	volume = {1 - 3},
	year = {1997},
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	author = {Logie, J.W. and Bryant, D.M. and Howell, D.l. and Vickery, J.A.}
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	author = {Lien, L. and Raddum, G.G. and Fjellheim, A. and Henriksen, A.}
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	author = {MacDonald, D.D. and Carr, R.S. and Calder, F.D. and Long, E.R. and Ingersoll, C.G.}
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	author = {Foot, J.P. and Caporn, S.J.M and Lee, J.A. and Ashenden, T.W.}
}
@article {1993,
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	year = {1996},
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	address = {Battleby},
	author = {Lindsay, R. and Immirzi, P.}
}
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	volume = {85},
	year = {1996},
	pages = {689-694},
	author = {Soulsby, C. and Turnbull, D. and Langan, S.J. and Owen, R. and Hirst, D.}
}
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	title = {Quantitative relationships of invertebrates to pH in Norwegian river systems.},
	journal = {Hydrobiologica},
	volume = {328},
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	author = {Larsen, J. and Birksl, H.J.B, and Raddum, G. and Fjellheim, A.}
}
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	journal = {Journal Bryology },
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	author = {Potter, L. and Foot, J.P. and Caporn, S.J.M and Lee, J.A.}
}
@article {651,
	title = {The use of lichens for estimating ammonia air pollution in Western France. },
	year = {1996},
	institution = {, Universiti de Nantes},
	author = {Lallemant, R. and Joslain, H. and Houssay, I. and Cyprien, A-L.}
}
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	author = {Mosello, R. and Wathne, B.M. and Lien, L. and Birks, H.J.B.}
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	journal = {Plant and Soil},
	volume = {174},
	year = {1995},
	pages = {3-28},
	keywords = {ammonia volatilization, azolla, casuarina, cropping systems, legume, legume residues, leucaena-leucocephala, lowland rice, n-2 fixation, natural n-15 abundance, new-south-wales, nitrogen fertilizer, north-eastern victoria, rhizobia, symbiotic n-2 fixation, wetland rice},
	author = {Peoples, M. B. and Herridge, D. F. and Ladha, J. K.}
}
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	year = {1995},
	author = {Houghton, J. T. and Meira Filho, L. G. and Bruce, J. and Lee, H. and Callander, B. A. and Haites, E. and Harris, N. and Maskell, K.}
}
@article {658,
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	journal = {Functional Ecology},
	volume = {9},
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	pages = {511-517},
	author = {Lehtila, K. and Syrjanen, K.}
}
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	journal = {Water, Air and Soil Pollution},
	volume = {85},
	year = {1995},
	pages = {2419-2424},
	author = {Henriksen, A. and Posch, M. and Hultberg, H. and Lien, L.}
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	volume = {129},
	year = {1995},
	pages = {605-609},
	author = {Caporn, S.J.M and Song, W. and Read, D.J. and Lee, J.A.}
}
@article {544,
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	journal = {Water, Air and Soil Pollution },
	volume = {85},
	year = {1995},
	pages = {1063-1068},
	author = {de Vriers, W. and Leeters, E.E.J.M. and Hendricks, C.M.A.}
}
@article {662,
	title = {Effects of Stream Acidity on Non-Breeding Dippers Cinclus- Cinclus in the South-Central Highlands of Scotland},
	journal = {Aquatic Conservation-Marine and Freshwater Ecosystems },
	volume = {5},
	year = {1995},
	pages = {25-35},
	author = {Logie, J.W.}
}
@article {621,
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	volume = {90},
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	author = {Hornung, M. and Bull, K.R. and Cresser, M.S. and Hall, J. and Langan, S.J. and Loveland, P.J. and Smith, C.}
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	journal = {Science of the Total Environment },
	volume = {161},
	year = {1995},
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	author = {Jonsdottir, I.S. and Callaghan, T.V. and Lee, J.A.}
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	journal = {Environmental Management},
	volume = {19},
	year = {1995},
	pages = {81-97},
	author = {Long, E.R. and MacDonald, D.D. and Smith, S.L. and Calder, F.D.}
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	journal = {Water  Air and Soil Pollution},
	volume = {84},
	year = {1995},
	pages = {81-102},
	author = {Lepisto, A. and Andersson, L. and Arheimer, B. and Sundblad, K.}
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@article {664,
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	volume = {85},
	year = {1995},
	pages = {1221-1226},
	author = {Lorenze, M.}
}
@article {1335,
	title = {Methods to derive critical loadsfor nitrogen for terrestrial ecosystems},
	year = {1995},
	pages = {20-33},
	institution = {Institute of Terrestrial Ecology},
	address = {Penicuik},
	author = {de Vries, W. and Latour, J.B.}
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@article {170,
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	year = {1995},
	pages = {1281-1286},
	author = {Rudawska, M. and Kieliszewska-Rocicka, B. and Leski, T. and Oleksyn, J.}
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	journal = {Water, Air and Soil Pollution},
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	author = {Power, S. and Ashmore, M.R. and Ling, K.A.}
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	year = {1995},
	pages = {175-191},
	author = {Lin, Z. Q and Schuepp, P. H and Schemenauer, R. S and Kennedy, G. G}
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	year = {1994},
	pages = {43-51},
	publisher = {Environmental Change Research Centre/ENSIS},
	organization = {Environmental Change Research Centre/ENSIS},
	chapter = {Mapping critical loads for the soils of Great Britain},
	address = {London},
	author = {Hornung, M. and Bull, K.R. and Cresser, M.S. and Loveland, P.J. and Langan, S.J. and Reynolds, B. and Robertson, W.H. and Battarbee, R.W. (Eds)}
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@inbook {527,
	title = {Acid Rain and its Impact: The Critical Loads Debate},
	year = {1994},
	pages = {146-150},
	publisher = {Environmental Change Research Centre/ENSIS},
	organization = {Environmental Change Research Centre/ENSIS},
	chapter = {Critical loads of nitrogen for upland heather (Calluna vulgaris). },
	address = {London},
	author = {Caporn, S.J.M and Carroll, J. and Lei, Y. and Song, W. and Read, D.J. and Lee, J.A. and Battarbee, R.W. (Eds)}
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	author = {Langan, S.J. and Bain, D.C. and Wilson, M.J.},
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	author = {Morecroft, M.D. and Skellers, E.K. and Lee, J.A.}
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	number = {Environmental Sciences Report ES14},
	year = {1994},
	pages = {185-200},
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	address = {Chichester},
	author = {Landers, D.H. and Bayley, S.E. and Ford, J. and Gunn, J.M. and Lukewille, A. and Norton, S.A. and Steinberg, C.E.W. and Vesely, J. and Zahn, M.T.},
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	author = {Baddeley, J.A. and Thompson, D.B.A. and Lee, J.A.}
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	author = {Lawrence, P.A. and Ashenden, T.W.}
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	author = {Loch, J and Gyori, Z and Vago, I}
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	author = {Black, K.E. and Lowe, J.A.H. and Billett, M.F. and Cresser, M.S.}
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	journal = {Advances in Bryology },
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}
@article {661,
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	journal = {Journal of Applied Ecology },
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@article {665,
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	pages = {19-34},
	author = {Lyle, A.A. and Maitland, P.S.}
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	journal = {New Phytologist },
	volume = {120},
	year = {1992},
	pages = {265-274},
	author = {Baxter, R. and Emes, M.J. and Lee, J.A.}
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@article {688,
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	journal = {New Phytologist},
	volume = {120},
	year = {1992},
	pages = {89-97},
	author = {Morgan, S.M. and Lee, J.A. and Ashenden, T.W.}
}
@article {542,
	title = {Influence of Ozone Air-Pollution on Plant-Herbivore Interactions .2. Effects of Ozone on Feeding Preference, Growth and Consumption Rates of Monarch Butterflies (Danaus-Plexippus)},
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	volume = {77},
	year = {1992},
	pages = {31-37},
	author = {Bolsinger, M. and Lier, M.E. and Hughes, P.R.}
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	year = {1991},
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@inbook {188,
	title = {Acid rain since 1985 - times are changing},
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	volume = {97},
	year = {1991},
	pages = {1-15},
	author = {Brydges, T.G. and Wilson, R.B.},
	editor = {Last, F.T. and Watling, R.}
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@article {202,
	title = {Acidic deposition: its nature and impacts},
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@inbook {655,
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	booktitle = {NCC Focus on Nature Conservation Report 26},
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	chapter = {The effects of acid deposition on blanket peatland vegetation. },
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	year = {1990},
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@book {681,
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	year = {1990},
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	journal = {Research Information Note 182},
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	author = {Lee, H.S.J. and Wilson, A. and Benham, S.E. and Darrant, D.W.H. and Houston, T. and Waddell, D.A.}
}
@article {1648,
	title = {The effects of sulphur dioxide on the parasitism of the rust fungus Uromyces viciae-fabae on Vicia faba.},
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	author = {Lorenzini, G, and Farina, R. and Guidi, L.}
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	title = {Forest decline, nutrient supply and diagnostic fertilisation in southwestern Germany and in southern California. },
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	author = {Huettl, R.F. and Fink, S. and Lutz, H.J. and Poth, M. and Wisniewski, J.}
}
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}
@inbook {1709,
	title = {Indigenous and cultivated plants as bioindicators},
	booktitle = {Biologic Markers of Air-Pollution Stress and Damage in Forests},
	year = {1989},
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	address = {Washington DC},
	author = {Weinstein, L.H. and Laurence, J.A.}
}
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	title = {Condition of Scots Pine fine roots and mycorrhiza after fungicide application and low-level ozone exposure in a 2-year field experiment},
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	year = {1988},
	pages = {347-355},
	author = {Manninen, A.M. and Laatikainen, T. and Holopainen, T.}
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@book {1940,
	title = { Distribution and movement of manganese in plants},
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	year = {1988},
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	author = {Leith, I.D. and Fowler, D.}
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	author = {Press, M.C. and Woodin, S.J. and Lee, J.A.}
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@article {1864,
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	volume = {99},
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	author = {Woodin, S.J. and Press, M.C. and Lee, J.A.}
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@article {1856,
	title = {Acute and chronic toxicities of arsenic (III) to fathead minnows, flagfish, daphnids and an amphipod},
	journal = {Archives of Environmental Contamination and Toxicology},
	year = {1984},
	pages = {595-601},
	author = {Lima, A. R and Curtis, C and Hammermeister, D. E and Markee, T. P and Northcott, C. E and Brooke, L. T}
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@article {678,
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	volume = {85B},
	year = {1984},
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	author = {Mason, P.A. and Wilson, J. and Last, F.T.}
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	volume = {12},
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	pages = {579-586},
	author = {Ferguson, N.P. and Lee, J.A.}
}
@article {1638,
	title = {Influence of chronic sulfur dioxide exposures on early blight of tomato.},
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@article {724,
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}
@book {478,
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	address = {London, Boston},
	author = {Alabaster, S. and Lloyd, R.}
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	year = {1978},
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@article {1870,
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@article {229,
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}
