THE SEX SYSTEM OF THE POPULATION OF SAGITTARIA SAITTIFOLIA AS AN INDICATOR OF THE ECOLOGICAL STATUS OF A RIVER. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 1, p. 150–155, 2017. DOI: 10.17770/etr2017vol1.2517. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4204.. Acesso em: 11 mar. 2026.