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Carson, M.A. 1971: The mechanics of erosion. London : Pion.

Gere, J.M. and Timoshenko, S.P. 1991: Mechanics of materials (3rd edn). London: Chapman & Hall.

Johnson, A.M. 1970: Physical processes in geology. San Francisco, CA: Freeman Cooper.

Kirkby, M.J. , Naden, P.S. , Burt, T.P. and Butcher, D.P. 1992: Computer simulation of physical geography (2nd edn). Chichester: Wiley.

Ortoleva, P.J., editor, 1990: Self-organization in geological systems. Earth-Science Reviews 29, 1-405.

Waltham, D. 1994: Mathematics: a simple tool for geologists. London: Chapman & Hall.