1. The erosion of limestone;Atkinson,1976
2. Karsthydrographie und physische Speläologie;Bögli,1978
3. Conduction of Heat in Solids;Carslaw,1959
4. The Mathematics of Diffusion;Crank,1975
5. Minimum diameter stalagmites;Curl;Bull. Natl. Speleol. Soc.,1973