1. J.R.L. Allen, Sedimentary Structures: Their Character and Physical Basis, Chaps. 2 and 7., Vol. I, Elsevier, Amsterdam (1982).
2. J.R.L. Allen, Sedimentary Structures: Their Character and Physical Basis, Chaps. 2 and 3, Vol. II, Elsevier, Amsterdam (1982).
3. Experiments on a gravity-free dispersion of large spheres in a Newtonian fluid under shear;Bagnold;Proc. R. Soc. London, Ser. A,1954
4. R.A. Bagnold, An approach to the sediment transport problem from general physics, US Geological Survey Professional Paper 422-I (1966).
5. C.R. Burch, Helicoid performance and fine cassiterite—joint discussion, Trans. IMM 71 (1961–1962) 406-415.