TY - Generic T1 - Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition Y1 - 2009 A1 - Elser, J.J. A1 - Anderson, T. A1 - Baron, J.S. A1 - Bergstorm, A.K. A1 - Jansson, M. A1 - Kyle, M. A1 - Nydick, K.R. A1 - Steger, L. A1 - Hesson, D.O. JF - Science VL - 5954 ER - TY - Generic T1 - Phosphorus and nitrogen limitation of phytoplankton growth in the freshwaters of North America: a review and critique of experimental enrichments Y1 - 1990 A1 - Elser, J.J. A1 - Marzolf, E.R. A1 - Goldman, C.R. JF - Canadian Journal of Fisheries and Aquatic Sciences VL - 47 ER -