SOBCZYK, W.; POROS, M.; SOBCZYK, E. J. Geopark as an Area of Conservation and Sustainable Use of Mining and Geological Heritage. Journal of Education, Technology and Computer Science, [S. l.], v. 12, n. 2, p. 119–124, 2015. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6502. Acesso em: 22 jul. 2024.