CALLIERI, Cristiana, and John STOCKNER. “Picocyanobacteria Success in Oligotrophic Lakes: Fact or Fiction?”. Journal of Limnology 59, no. 1 (February 1, 2000): 72–76. Accessed March 28, 2024. https://www.jlimnol.it/jlimnol/article/view/jlimnol.2000.72.