Wisniewska, Marzenna, and Ewa A. Dembowska. 2017. “Phytoplankton Dynamics in Relation to Physicochemical Conditions in Large, Stratified Lake Charzykowskie (Northern Poland)”. Oceanological and Hydrobiological Studies 46 (3):260-70. https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/8750.