DOCHIN, Kostadin. Using phytoplankton as a tool for evaluating changes in the ecological status of two Bulgarian reservoirs (2020-2021). Bulgarian Journal of Agricultural Science, Sofia, BG, v. 29, n. 2, p. 252–261, 2023. Disponível em: https://agriacad.eu/ojs/index.php/bjas/article/view/1057.. Acesso em: 2 nov. 2026.