@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 {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 {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 {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 {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 {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 {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 {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 {760,
	title = {Early effects of acid mist on Sitka spruce planted on acid peat.},
	journal = {Phyton (Horn Austria)},
	volume = {39},
	year = {1998},
	pages = {1-25},
	author = {Sheppard, L.J. and Crossley, A. and Harvey, F. and Parrington, J. and White, C.C.}
}
@article {251,
	title = {Soil nitrous oxide and nitric oxide emissions as indicators of the exceedance of critical loads of atmospheric nitrogen deposition in semi-natural ecosystems},
	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.}
}
@article {538,
	title = {Stem growth reductions in mature Sitka spruce trees exposed to acid mist},
	journal = {Environmental Pollution},
	volume = {96},
	year = {1997},
	pages = {185-193},
	author = {Crossley, A. and Sheppard, L.J. and Cape, J.N and Smith, R.I. and Harvey, F.}
}
@article {1621,
	title = {The Weathering of Scots Pine Epicuticular Wax in Polluted and Clean Air.},
	journal = {New Phytologist},
	volume = {103},
	year = {1986},
	pages = {207-218},
	author = {Crossley, A. and Fowler, D.}
}
