@article {1559,
	title = {A review and application of the evidence for nitrogen impacts on ecosystem services.},
	journal = {Ecosystem Services},
	volume = {7},
	year = {2014},
	pages = {76-88},
	author = {Jones, L. and Provins, A. and Harper-Simmonds, L. and Holland, M. and Mills, G. and Hayes, F. and Emmett, B.A. and Hall, J. and Sheppard, L.G. and Smith, R. and Sutton, M. and Hicks, K. and Ashmore, M. and Haines-Young, R.}
}
@article {1584,
	title = {Using the Ecosystems Services Approach to value air quality.},
	year = {2014},
	institution = {DEFRA},
	author = {Jones, M.L.M. and Provins, A. and Harper-Simmonds, L. and Holland, M. and Mills, G. and Hayes, F. and Emmett, B.A. and Hall, J. and Sheppard, L.J. and Smith, R. and Sutton, M. and Hicks, K. and Ashmore, M. and Haines-Young, R.}
}
@article {1466,
	title = {Long-term amelioration of acidity accelerates decomposition in headwater streams.},
	journal = {Global Change Biology},
	volume = {19},
	year = {2013},
	pages = {1100-1106},
	author = {Jenkins, G.B. and Woodward, G. and Hildrew, A.G.}
}
@article {1343,
	title = {Upwind impacts of ammonia from an intensive poultry unit},
	journal = {Environmental Pollution},
	year = {2013},
	author = {Jones, L. and Nizam, M.S. and Reynolds, B. and Oxley, E.R.B. and Bareham, S.}
}
@article {1440,
	title = {Coastal eutrophication as a driver of salt marsh loss},
	journal = {Nature},
	volume = {490},
	year = {2012},
	pages = {388-392},
	author = {Deegan, L.A. and Johnson, D.S. and Warren, R.S. and Peterson, B.P. and Fleeger, J.W. and Fagherazzi, S. and Wollheim, W.M.}
}
@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 {1659,
	title = {Ash storms: impacts of wind-remobilised volcanic ash on rural communities and agriculture following the 1991 Hudson eruption, southern Patagonia, Chile},
	journal = {Bulletin of Volcanology},
	volume = {73},
	year = {2011},
	pages = {223-239},
	author = {Wilson, T.M. and Cole, J.W. and Stewart, C. and Cronin, S.J. and Johnston, D.M.}
}
@article {1660,
	title = {Impacts on agriculture following the 1991 eruption of Vulcan Hudson, Patagonia: lessons for recovery.},
	journal = {Natural Hazards},
	volume = {57},
	year = {2011},
	pages = {185-212},
	author = {Wilson, T. and Cole, J. and Cronin, S. and Stewart, C. and Johnston, D.}
}
@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 {1348,
	title = {Predicting effects of N pollutant load on plant species based on a dynamic soil eutrophication indicator},
	number = {977},
	year = {2011},
	pages = {39},
	institution = {Countryside Council for Wales},
	address = {Bangor},
	author = {Rowe, E.C. and Jones, M.L.M. and Henrys, P.A. and Smart, S.M. and Tipping, E. and Mills, R.T.E. and Evans, C.D.}
}
@article {1342,
	title = {UK Status Report July 2011: Update to empirical critical loads of nitrogen},
	year = {2011},
	pages = {55pp},
	author = {Hall, R.J. and Emmett, B. and Garbutt, A. and Jones, L and Rowe, E. and Sheppard, L and Vanguelova, E. and Pitman, R. and Britton, A. and Hester, A. and Ashmore, M. and Power, S. and Caporn, S.}
}
@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 {1112,
	title = {UK Habitat Type - Freshwater},
	year = {2010},
	url = {http://www.jncc.gov.uk/page-1430},
	author = {JNCC}
}
@article {1345,
	title = {The effects of low levels of nitrogen deposition and grazing on dune grassland},
	journal = {Science of the Total Environment},
	volume = {407},
	year = {2009},
	pages = {1391-1404},
	author = {Plassmann, K. and Edwards-Jones, G. and Jones, M.L.M.}
}
@article {1469,
	title = {Light limitation of nutrient-poor lake ecosystems.},
	journal = {Nature},
	year = {2009},
	pages = {506-509},
	author = {Karlsson, J. and Bystrom, P. and Ask, J. and Ask, P. and Persson, L. and Jansson, M.}
}
@article {1387,
	title = {Particulate matter at a rural location in southern England during 2006: Model sensitivities to precursor emissions},
	journal = {Atmospheric Environment},
	volume = { 43},
	year = {2009},
	pages = {689-696},
	author = {Derwent, R.G. and Witham, C. and Redington, A. and Jenkin, M.E. and Stedman, J.R. and Yardley, R. and Hayman, G.}
}
@article {1110,
	title = {Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition},
	journal = {Science},
	volume = {5954},
	year = {2009},
	pages = {835-837},
	author = {Elser, J.J. and Anderson, T. and Baron, J.S. and Bergstorm, A.K. and Jansson, M. and Kyle, M. and Nydick, K.R. and Steger, L. and Hesson, D.O.}
}
@article {1315,
	title = {The effect of nitrogen additions on oak foliage and herbivore communities at sites with high and low atmospheric pollution},
	journal = {Environmental Pollution},
	volume = {151},
	year = {2008},
	edition = {434-442},
	author = {Eatough Jones, M. and Paine, T.D. and Fenn, M.E.}
}
@article {1344,
	title = {Factors controlling soil development in sand dunes: evidence from a coastal dune soil chronosequence},
	journal = {Plant and Soil},
	volume = {307},
	year = {2008},
	pages = {219-234},
	author = {Jones, M.L.M. and Sowerby, A. and Williams, D.L. and Jones, R.E.}
}
@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 {1491,
	title = {Dissolved organic carbon trends resulting from changes in atmospheric deposition chemistry.},
	journal = {Nature},
	volume = {450},
	year = {2007},
	pages = {537-539},
	author = {Monteith, D.T. and Stoddard, J.L. and Evans, C.D. and De Wit, H.A. and Forsius, M. and Hogasen, T. and Wilander, A. and Skjelkvale, B.L. and Jeffries, D.S. and Vuorenmaa, J. and Keller, B. and Kop{\'a}cek, J. and Vesely, J.}
}
@article {1273,
	title = {Diversity and sensitivity of epiphytes to oxides of nitrogen in London},
	journal = {Environmental Pollution },
	volume = {146},
	year = {2007},
	pages = {299-310},
	abstract = {This study investigated the distribution and diversity of epiphytes in London in relation to NO(x) using fine-scale atmospheric dispersion modelling. The survey recorded over 3000 epiphytes from 334 trees (Fraxinus excelsior) representing 74 lichen, 14 moss, 7 fungal and 3 algal species. There was a significant inverse relationship between diversity and NO(x). Diversity declined where NO(x) exceeded 70 microg m(-3) and NO2 exceeded 40 microg m(-3), suggesting a phytotoxic effect. However, there was a significant positive relationship between NO(x) and lichen abundance due to the ubiquitous distribution of pollution tolerant species, mainly associated with eutrophication. A scale of lichen sensitivity to NO(x) has been derived.},
	author = {Davies, L. and Bates, J.W. and Bell, J.N.B. and James, P.W. and Purvis, O.W.}
}
@article {1103,
	title = { Identifying ozone-sensitive communities of (semi-)natural vegetation suitable for mapping exceedance of critical levels},
	journal = {Environmental Pollution},
	volume = {146},
	year = {2007},
	pages = {736-743},
	author = {Mills, G. and Hayes, F. and Jones, M.L.M. and Cinderby, S.}
}
@article {1456,
	title = {Meta-analysis of the relative sensitivity of semi-natural vegetation species to ozone.},
	journal = {Environmental Pollution},
	volume = {146},
	year = {2007},
	pages = {754-762},
	author = {Hayes, F. and Jones, M.L.M. and Mills, G. and Ashmore, M.}
}
@article {1467,
	title = {Predicting community sensitivity to ozone, using Elleberg indicator values.},
	journal = {Environmental Pollution},
	volume = {146},
	year = {2007},
	pages = {744-753},
	author = {Jones, L. and Hayes, F. and Mills, G. and Sparks, T. and Fuhrer, F.}
}
@mastersthesis {1717,
	title = {Ammonia deposition to semi-natural vegetation},
	volume = {Ph.D.},
	year = {2006},
	school = {University of Dundee},
	address = {Dundee, Scotland, UK},
	author = {Jones, M.R.}
}
@article {1683,
	title = {Atmospheric nitrogen deposition has caused nitrogen enrichment and eutrophication of lakes in the northern hemisphere.},
	journal = {Global Change Biology},
	volume = {12},
	year = {2006},
	pages = {635-643},
	author = {Bergstorm, A.K. and Jansson, M.}
}
@article {1708,
	title = {Detecting changes in epiphytic lichen communities at sites affected by atmospheric ammonia from agricultural sources},
	journal = {Lichenologist},
	volume = {38},
	year = {2006},
	pages = {161-176},
	keywords = {acidophytes, air, ammonia, bark ph, deposition, dispersion, impacts, lichens, netherlands, nitrophytes, oak trees, pollution, recolonization, spatial variability, woodland},
	author = {Wolseley, P. A. and James, P. W. and Theobald, M. R. and Sutton, M. A.}
}
@article {1355,
	title = {Impacts of grazing on montane heath vegetation in Wales and implications for the restoration of montane areas},
	journal = {Biological Conservation},
	volume = {125},
	year = {2005},
	pages = {515-524},
	author = {Britton, A.J. and Pearce, I.S.K.P and Jones, B.}
}
@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 {1102,
	title = {Changes in vegetation and soil characteristics in coastal sand dunes along a gradient of atmospheric nitrogen deposition},
	journal = {Plant Biology},
	volume = {6},
	year = {2004},
	pages = {598-605},
	author = {Jones, M.L.M. and Wallace, H.L. and Norris, D. and Brittain, S.A. and Haria, S. and Jones, R.E. and Rhind, P.M. and Reynolds, B.R. and Emmett, B.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 {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 {637,
	title = {Changing nutrient budget of sand dunes: consequences for the nature conservation interest and dune management. 1 },
	number = {CCW No. FC 73-01-347},
	year = {2002},
	month = {March 2002. },
	author = {Jones, M.L.M. and Reynolds, B. and Stevens, P.A. and Norris, D.A.}
}
@article {636,
	title = {The influence of nitrogen deposition, competition and desiccation on growth and regeneration of Racomitrium lanuginosum (Hedw.) Brid},
	journal = {Environmental Pollution},
	volume = {120},
	year = {2002},
	pages = {371-378},
	author = {Jones, M.L.M. and Oxley, E.R.B. and Ashenden, T.W.}
}
@article {1323,
	title = {{\"O}kologie und Vegetation der W{\"a}lder Nordostdeutschlands},
	year = {2002},
	author = {Anders, S. and Beck, W. and Bolte, A. and Hofmann, G. and Jenssen, M. and Krakau, U. and M{\"u}ller, J.}
}
@article {50,
	title = {Accumulation of perfluorooctane sulfonate in marine mammals},
	journal = {Environmental Science and Technology},
	volume = {35},
	year = {2001},
	pages = {1593-1598},
	author = {Kannan, K and Koistinen, J. and Beckmen, K and Evans, T. and Gorzelany, J.F. and Hansen, K.J. and Jones, P.D. and Helle, E. and Nyman, M. and Giesy, J.P.}
}
@article {1930,
	title = {Bioaccumulation of metals in plants, arthropods and mice at a seasonal wetland},
	journal = { Environmental Toxicology and Chemistry},
	year = {2001},
	pages = {2617-2626},
	author = {Torres, K. C and Johnson, M. L}
}
@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)},
	year = {2001},
	pages = {131-145},
	author = {Sutton, M.A. and Milford, C. and Nemitz, E. and Theobald, M.R. and Fowler D. and Schjoerring, J.K. and Mattsson, M.E. and Nielsen, K.H. and Husted, S. and Erisman, J.W. and Oties, R. and Hensen, A. and Mosquera, J. and Cellier, P. and Loubert, B. and David, M. and Genermont, S. and Neftel, A. and Blatter, A. and Herrmann, B. and Jones, S.K. and Horvath, L. and Flhrer, E. and Mantzanas, K. and Koukoura, Z. and Gallagher, M. and Williams, P. and Flynn, M. and Riedo, M.}
}
@article {123,
	title = {Impact Assessment of ionising radiation on wildlife},
	year = {2001},
	institution = {Environment Agency},
	address = {Bristol},
	url = {http://publications.environment-agency.gov.uk/pdf/SR-DPUB-128-e-e.pdf },
	author = {Copplestone, D and Bielby, S and Jones, SR and Paton, D and Daniel, P and Gize, I}
}
@article {1961,
	title = {Relevance of element content of bark for the distribution of epiphytic licehns in a montane spruce forest affected by forest dieback},
	journal = {Environmental Pollution},
	year = {2001},
	pages = {221-227},
	author = {Hauck, M and Jung, R and Runge, M}
}
@article {1137,
	title = {Assessing the chronic effects of atmospheric tetrachloroethylene (PER) on plants. Note 48},
	journal = {Plant Research International},
	year = {2000},
	publisher = {Wageningen},
	address = {Netherlands},
	author = {Franzaring, J. and Van der Eerden, L.J.M. and Van Dijk, C.J. and Helsper J.P.F.G. and Pikaar P.J.J. and Nijhuis E.H. and Tonneijck A.E.G.}
}
@article {1701,
	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.}
}
@article {826,
	title = {Bryophyte biomass and species richness on the Park Grass Experiment, Rothamsted, UK. },
	journal = {Plant Ecology},
	volume = {151},
	year = {2000},
	pages = {129-141},
	author = {Virtanen, R. and Johnson, A.E. and Crawley, M.J. and Edwards, G.R.}
}
@article {532,
	title = {The effect of long-term nitrogen additions on the bryophyte cover of upland acidic grassland},
	journal = {Journal Bryology },
	volume = {22},
	year = {2000},
	pages = {83-89},
	author = {Carroll, J.A. and Johnson, D. and Morecroft, M.D. and Taylor, A.G. and Caporn, S.J.M and Lee, J.A.}
}
@article {634,
	title = {Habitat matrix effects on pond occupancy in newts. },
	journal = {Conservation Biology},
	volume = {15},
	year = {2000},
	pages = {239-248},
	author = {Joly, P. and Miaud, C. and Lehmann, A. and Grolet, O.}
}
@article {811,
	title = {Mycorrhizal weathering: A true case of mineral plant nutrition ?},
	journal = {Biogeochemistry},
	volume = {49},
	year = {2000},
	pages = {53-67},
	author = {Van Breemen, N. and Finlay, R. and Lundstrom, U. and Jongmans, A.G.}
}
@conference {237,
	title = {Reinvasion of urban areas by black spot and tar spot},
	booktitle = {CAPER 2000, 11-13th April},
	year = {2000},
	address = {Birmingham},
	author = {Jarraud, N.S. and Bell, J.N. and Leith, I.D. and Fowler, D. and Archer, S.A.A.}
}
@article {33,
	title = {Climate change scenarios for global impacts studies},
	journal = {Global Environmental Change},
	volume = {9},
	year = {1999},
	pages = {S3-S19 Suppl. S.},
	author = {Hulme, M. and Mitchell, J. and Ingram, M. and Johns, T. and New, M. and Viner, D.}
}
@article {633,
	title = {The effects of quantity and duration of simulated pollutant nitrogen deposition on root-surface phosphatase activities in Calcareous and acid grasslands: a bioassay approach},
	journal = {New Phytol},
	volume = {141},
	year = {1999},
	pages = {433-442},
	author = {Johnson, D. and Leake, J.R. and Lee, J.A.}
}
@article {632,
	title = {Environmental chemistry: End of acid reign? },
	journal = {Nature},
	volume = {401},
	year = {1999},
	pages = {537-538},
	author = {Jenkins, A.}
}
@article {888,
	title = {The fate of NH4NO3 added to Sphagnum magellanicum carpets at five European mire sites},
	journal = {Biogeochemistry},
	volume = {45},
	year = {1999},
	pages = {73-93},
	author = {Williams, B.L. and Buttler, A. and Grosvernier, P. and Francez, A.J. and Gilbert, D. and Ilomets, M. and Jauhiainen, J. and Matthey, Y. and Silcock, D.J.}
}
@article {115,
	title = {Persistent organic pollutants (POPS); state of the science},
	journal = {Environmental Pollution},
	volume = {100},
	year = {1999},
	pages = {209-221},
	author = {Jones, K.C. and de Voogt, P.}
}
@inbook {657,
	title = {Bryology for the Twenty-first Century},
	year = {1998},
	pages = {331-341},
	chapter = {Effects of ozone and atmospheric nitrogen deposition on bryophytes},
	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.}
}
@article {22,
	title = {Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	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 {19,
	title = {A new inventory for ammonia emissions from U.K. agriculture},
	journal = {(Ammonia Special Issue) Atmospheric Environment },
	volume = {32},
	year = {1998},
	pages = {309-313},
	author = {Pain, B.F. and van der Weerden, T.J. and Chambers, B.J. and Phillips, V.R. and Jarvis, S.C.}
}
@article {629,
	title = {Potential NH4+ \& NO3- uptake in seven Sphagnum species},
	journal = {New Phytol},
	volume = {138},
	year = {1998},
	pages = {287-293},
	author = {Jauhiainen, J. and Wallen, B. and Malmer, N.}
}
@article {152,
	title = {Widespread sexual disruption in wild fish},
	journal = {Environmental Science and Technology},
	volume = {32},
	year = {1998},
	pages = {2498-2506},
	author = {Jobling, S. and Nolan, M. and Tyler, C.R. and Brighty, G. and Sumpter, J.P.}
}
@article {1894,
	title = {Canadian water quality guidelines for chromium},
	journal = {Environmental Toxicology and Water Quality},
	year = {1997},
	pages = {123-183},
	author = {Pawlisz, A. V and Kent, R. A and Schneider, U. A and Jefferson, C}
}
@article {150,
	title = {Depositional time trends and remobilization of PCBs in lake sediments},
	journal = {Environmental Science and Technology},
	volume = {31},
	year = {1997},
	pages = {3274-3280},
	author = {Gevao, B. and Hamilton-Taylor, J. and Murdock, C. and Jones, K.C. and Kelly, M. and Tabner, B.J.}
}
@article {630,
	title = {The embarrassment of riches: Atmospheric deposition of nitrogen and community and ecosystem processes. },
	journal = {Trends in Ecology and Evolution},
	volume = {12},
	year = {1997},
	pages = {74-78},
	author = {Jefferies, R.L.}
}
@article {639,
	title = {Mapping of rainfall chemistry in Ireland 1972-94},
	journal = {Biology and Environment: Proceedings of the Royal Irish Academy},
	volume = {97B},
	year = {1997},
	pages = {53-73},
	author = {Jordan, C.}
}
@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},
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