TIMO, M. B. Speleological Heritage in Ferruginous Rocks: Proposals to its Conservation in the Iron Quadrangle, Minas Gerais. Acta Carsologica, Ljubljana, Slovenija, v. 45, n. 1, 2016. DOI: 10.3986/ac.v45i1.4136. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/4136. Acesso em: 23 nov. 2024.