@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.} }