Knez, Martin, Tadej Slabe, and Luiz Eduardo Panisset Travassos. 2012. “Karren on Laminar Calcarenitic Rock of Lagoa Santa (Minas Gerais, Brazil)”. Acta Carsologica 40 (2). Ljubljana, Slovenija. https://doi.org/10.3986/ac.v40i2.19.