Konchina, Tatyana, Viola Sidorskaya, Svetlana Oparina, Alexander Rostunov, Elena Baronova, and Elena Zhestkova. “THE SEX SYSTEM OF THE POPULATION OF SAGITTARIA SAITTIFOLIA AS AN INDICATOR OF THE ECOLOGICAL STATUS OF A RIVER”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 15, 2017): 150–155. Accessed April 28, 2024. https://journals.ru.lv/index.php/ETR/article/view/2517.