1.
Sudnitsina D, Cherevichko A. Estimation of River Utroya Ecological State in Intensive Organic Pollution Area Using Plankton Communities ’ Characteristics (Pskov Region). ETR [Internet]. 2015 Aug. 9 [cited 2024 Nov. 23];3:62-4. Available from: https://journals.ru.lv/index.php/ETR/article/view/882