@article {1469,
	title = {Light limitation of nutrient-poor lake ecosystems.},
	journal = {Nature},
	year = {2009},
	pages = {506-509},
	author = {Karlsson, J. and Bystrom, P. and Ask, J. and Ask, P. and Persson, L. and Jansson, M.}
}
@article {1110,
	title = {Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition},
	journal = {Science},
	volume = {5954},
	year = {2009},
	pages = {835-837},
	author = {Elser, J.J. and Anderson, T. and Baron, J.S. and Bergstorm, A.K. and Jansson, M. and Kyle, M. and Nydick, K.R. and Steger, L. and Hesson, D.O.}
}
@article {1683,
	title = {Atmospheric nitrogen deposition has caused nitrogen enrichment and eutrophication of lakes in the northern hemisphere.},
	journal = {Global Change Biology},
	volume = {12},
	year = {2006},
	pages = {635-643},
	author = {Bergstorm, A.K. and Jansson, M.}
}
