1. Cave and karst evolution in the Alps and their relation to paleoclimate and paleotopography;Audra;Acta Carsologica,2007
2. Masivul Vânturariţa-Buila – Caracterizare geomorfologică (Vânturariţa-Buila Massiff – Geomorphological Analysis);Badea;Buletinul Geografic,1998
3. Southeastern Alaska;Baichtal,2009
4. Fluviokarst and classical karst: examples from the Dinarics (Krk Island, Northern Adriatic, Croatia);Benac;Geomorphology,2012
5. Morfologia carstică. Condiţionarea geologică şi geografică a procesului de carstificare (Karst morphology. Geologic and geographic controls on karst process);Bleahu,1974