BELLA, P.; BOSÁK, P. Ceiling erosion in caves: early studies and Zdeněk Roth as author of the concept. Acta Carsologica, Ljubljana, Slovenija, v. 44, n. 1, 2015. DOI: 10.3986/ac.v44i1.768. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/768. Acesso em: 3 may. 2024.