@article {1300,
	title = {Identifying indicators of atmospheric nitrogen deposition impacts in acid grasslands},
	journal = {Biological Conservation},
	volume = {142},
	year = {2009},
	pages = {2069-2075},
	author = {Stevens, C.J. and Maskell, L.C. and Smart, S.M. and Caporn, S.J.M. and Dise, N.B. and Gowing, D.J.}
}
