1. Hypogenic caves in Provence (France): specific features and sediments;Audra;Acta Carsologica,2002
2. Cave and karst evolution in the Alps and their relation to paleoclimate and paleotopography;Audra;Acta Carsologica,2007
3. Thermal genesis of dissolution caves in the Black Hills, South Dakota;Bakalowicz;Geological Society of America Bulletin,1987
4. Le reseau Denis Parisis, Bethemont-la-Foret, Val-d'Oise;Beluche;Spelunca,1996
5. Artesian origin of fissure caves in Missouri;Brod;National Speleological Society Bulletin,1964