KRSTIĆ, S.; MELOVSKI, L.; LEVKOV, Z.; STOJANOVSKI, P. Complex investigations on the river Vardar. II. The most polluted sites in the first three months. Macedonian Journal of Ecology and Environment, [S. l.], v. 2, n. 2, p. 13–29, 1994. Disponível em: http://mjee.org.mk/index.php/mjee/article/view/25. Acesso em: 20 may. 2024.