@article {46797,
	title = {A review of anthropogenic sources of nitrogen and their effects on Canadian aquatic ecosystems},
	volume = {79},
	year = {2006},
	pages = {25-44},
	publisher = {Biogeochemistry},
	url = {http://www.springerlink.com/content/5350w07775k66819/fulltext.pdf},
	author = {Schindler, David W. and Dillon, Peter J. and Schreier, Hans}
}
