PETROVIC, A. S.; CAREVIC, I. Z. Geological influence on the formation of Samar natural bridge and collapse valley of Ravna River from the NE Kučaj Mountains (Carpatho-Balkanides, eastern Serbia). Acta Carsologica, Ljubljana, Slovenija, v. 44, n. 1, 2015. DOI: 10.3986/ac.v44i1.898. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/898. Acesso em: 30 apr. 2024.