1. Baer, F. (1970),Analytical solutions to low-order spectral systems. Arch. Met. Geoph. Biok., Ser. A19, 255?282.
2. Bountis, T. C. (1981),Period doubling bifurcations and universality in conservative systems. Physica3D, 577?589.
3. Hénon, M. (1983), ?Numerical exploration of Hamiltonian systems,? inChaotic Behaviour of Deterministic Systems, G. Looss, R. H. G. Helleman and R. Stora (eds.) (1983), North-Holland Publishing Company.
4. Lorenz, E. N. (1960)Maximum simplification of the dynamic equations' Tellus12, 243?254.
5. Lorenz, E. N. (1963),The mechanics of vacillation, J. Atmos. Sci.20, 448?464.