CALLIERI, Cristiana, and John G. STOCKNER. “Freshwater Autotrophic Picoplankton: A Review”. Journal of Limnology 61, no. 1 (February 1, 2002): 1–14. Accessed March 28, 2024. https://www.jlimnol.it/jlimnol/article/view/jlimnol.2002.1.