1. R.A. Bagnold: The Physics of Blown Sand and Desert Dunes (Chapman & Hall, London 1941)
2. L.B. Leopold, M.G. Wolman, J.P. Miller: Fluvial Processes in Geomoprhology (Dover, New York 1964)
3. D. Knighton: Fluvial Forms and Processes (Arnold, London 1998)
4. M. Selim Yalin: Mechanics of Sediment Transport (Pergamon Press, Oxford 1972)
5. N.M. Coleman: ‘A theoretical and experimental study of drag and lift forces acting on a sphere resting on a hypothetical stream bed’. In: Proc. 12th Cong. I.A.H.R., paper C22 (Fort Collins 1967)