@article {263,
	title = {Indicators of climate change in the UK},
	year = {1999},
	institution = {Department of the Environment, Transport and the Regions},
	author = {Cannell, M.G.R. and Palutikof, J.P. and Sparks, T.H.}
}
@article {844,
	title = {Are calcareous grasslands in the UK under threat from nitrogen deposition - an experimental determination of a critical load},
	volume = {83},
	year = {1995},
	pages = {823-832},
	author = {Wilson, E.J. and Wells, T.C.E. and Sparks, T.H.}
}
