SOBCZYK, W.; KOWALSKA, A. The Natura 2000 network and thread from mining activities. Journal of Education, Technology and Computer Science, [S. l.], v. 7, n. 1, p. 278–283, 2013. DOI: 2080-9069. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6845. Acesso em: 24 sie. 2024.