KOLČAKOVSKI, D. Speleomorphological characteristics of the carst and protection of the underground carst forms in the Skopje Basin. Macedonian Journal of Ecology and Environment, [S. l.], v. 4, n. 1, p. 29–34, 1996. Disponível em: http://mjee.org.mk/index.php/mjee/article/view/37. Acesso em: 19 may. 2024.