1. G. Hall and J. M. Watt, Modern Numerical Methods for Ordinary Differential Equations. Clarendon Press, Oxford, 1976.
2. Chaotic motion of fluid particles around a rotating elliptic vortex in a linear shear flow
3. V. F. Kozlov and A. Yu. Gurulev, On mixing vortices along deep troughs. Meteorologia i Gidrologiya (1994) 6, 70 -78 (in Russian).
4. V. F. Kozlov, Background flows in geophysical hydrodynamics. Ross. Akad. Nauk, Fiz. Atmos. i Okeana (1995) 31, No. 2, 245-250 (in Russian).