MAŁECKI, A. OUTFLOW OF THE BIOGENIC SUBSTANCES IN THE DRAINAGE AREA OF SŁAWSKIE LAKE. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 166–170, 2006. DOI: 10.17770/etr2003vol1.2003. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/2003.. Acesso em: 5 dec. 2024.