1. The Judea Group (Upper Cretaceous) in Central and Southern Israel;Arkin;Bull.-Isr. Geol. Surv.,1967
2. Type Sections of Cretaceous Formations in the Jerusalem–Bet Shemesh Area;Arkin,1965
3. Karst Hydrology and Physical Speleology;Bögli,1980
4. Vadose and phreatic features of limestone caverns;Bretz;J. Geol.,1942
5. Origin of limestone caverns;Davis;Geol. Soc. Amer. Bull.,1930