1. J. S.Russell, in: Rept. 14th Meetings of the British Assoc. for the Advancement of Science, John Murray, London (1844).
2. D. J.Korteweg and G. de Vries, Phil. Mag., 39, 422–443 (1895).
3. F. Gerstner, Ann. Phys. Lpz., 32, No. 2, 412–415 (1809).
4. H. Lamb, Hydrodynamics, Cambridge University Press, Cambridge (1916).
5. G. G. Stokes, Cambridge Trans., 8, 441–473 (1847).