Tretjakova, Rasma, Jana Paidere, and Aija Brakovska. “ASSESSMENT BY MACROINVERTEBRATES OF THE ECOLOGICAL QUALITY OF SHALLOW LAKE WITH RICH SAPROPEL SEDIMENTS”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 13, 2023): 228–234. Accessed April 24, 2025. https://journals23.rta.lv/index.php/ETR/article/view/7315.