Bracken, Matthew ES; Hillebrand, Helmut; Borer, Elizabeth T; Seabloom, Eric W; Cebrian, Just; Cleland, Elsa E; et al.(2015). Signatures of nutrient limitation and co-limitation: responses of autotroph internal nutrient concentrations to nitrogen and phosphorus additions. Oikos, 124(2), 113-121. doi: 10.1111/oik.01215. UC Office of the President: Research Grants Program Office (RGPO). Retrieved from: http://www.escholarship.org/uc/item/0z38w80g Oikos, vol 124, iss 2 OIKOS, vol 124, iss 2