@article {1358,
	title = {Interplay between nitrogen deposition and grazing causes habitat degradation},
	volume = {6},
	year = {2003},
	pages = {141-146},
	author = {Van der Wal, R. and Pearce, I. and Brooker, R. and Scott, D. and Welch, D. and Woodin, S.}
}
