1. Holocene climatic instability;Alley;Geology,1997
2. Elevated and variable values of 13C in speleothems in a British cave system;Baker;Chemical Geology,1997
3. Stable carbon isotope ratios of natural materials. II. Atmospheric, terrestrial, marine, and freshwater environments;Boutton,1991
4. Bretz, J.H., 1956. Caves of Missouri, Vol. 39 (2nd Series). State of Missouri Department of Business and Administration.
5. Bretz, J. H., 1965. Geomorphic History of the Ozarks of Missouri. Vol. 41 (2nd Series). State of Missouri Department of Business and Administration.