1. G. Harris, Phytoplankton Ecology: Structure, Function and Fluctuation (Springer, Berlin, 2012)
2. B. Moss, Ecology of Fresh Waters: A View for the Twenty-First Century (Wiley, New York, 2010)
3. T. Gaarder, Investigations of the production of plankton in the Oslo Fjord. Rapports et proces-verbaux des reunions. Conseil International pour 1’Exploration de la Mer, vol. 42, pp. 1–48 (1927)
4. E. Paasche, Nitrogen Cycling in Coastal Marine Environments (1988), pp. 33–57
5. M. Bengfort, U. Feudel, F.M. Hilker, H. Malchow, Ecol. Complex. 20, 185–194 (2014)