Crisan, H.F, Irimus, I.A, Balint-Balint (2015). KARST GEOMORPHOSITES FROM THE GIURGEU MOUNTAINS (ROMANIA). SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION, 279-286. https://doi.org/10.5593/sgem2015/b52/s20.037