1. Barker G, Barton H, Beavitt P, Bird M, Daly P, Doherty C, Gilbertson D, Hunt C, Krigbaum J, Lewis H, Manser J, McLaren S, Paz V, Piper P, Pyatt B, Rabett R, Reynolds T, Rose J, Rushworth G, Stephens M (2002) Prehistoric foragers and farmers in South-east Asia: renewed investigations at Niah Cave, Sarawak. Proc Prehist Soc 68:147–164
2. Barton, CM, Clarke GA (1993) Cultural and natural formation processes in Late Quaternary cave and rockshelter sites of Western Europe and the Near East. In: Goldberg P, Nash DT, Petraglia MD (eds) Formation Processes in Archaeological Context. Monographs in World Archaeology, no. 17, Prehistory Press, Madison, WI, 33–60.
3. Beger K (2001) Environmental hydrogeology of Lobatse, Southeast District, Republic of Botswana. Unpublished MSc thesis, Bundesanstalt fur Geowissenschaften und Rohstoffe (BGR), Hannover, Germany
4. Bons CA, Van Loon JAWM (1985) Water resources evaluation of a Dolomite ground water basin in Southeast Botswana. Unpublished report, Institute of Earth Science, Free University, Amsterdam
5. Brook GA, Cowart JB, Brandt SA (1998) Comparison of quaternary environmental change in eastern and southern Africa using cave speleothem, tufa and rock shelter sediment data. In: Alsharhan G, Whittle K (eds) Quaternary Deserts and Climatic Change. Balkema, Rotterdam, pp 239–249