2Ruelle D, Takens F. On the natural of turbulence. Comm Math Phys, 1971.20:167-192.
3Li T Y, Yorke J. Period three implies chaos. Amer Math Monthly, 1975, 82:985-992.
4Devaney R. An Introduction to Chaotic Dynamical Systems. Reading MA: Addison-Wesley, 1989.
5Banks J, Brooks J, Cairns G, et al. On Devaney's definition of chaos. Amer Math Monthly, 1992, 99:332-334.
6Huang Wen, Ye Xiangdong. Devaney's chaos or 2-scattering implies Li-Yorke's chaos. Topology and Its Aoolications. 2002. 117:259-272.
7Mad Jiehua. Devaney's chaos implies existence of s-scrambled sets. Proe Amer Math Soc, 2004, 132:2761-2767.
8Xiong Jincheng, Yang Zhongguo. Chaos caused by a topologically mixing maps. In: Shiraiwa K, ed.Proceedings of the International Conference, Dynamical Systems and Related Topics. Singapore: World Scientific Press, 1991. 550-572.
9Mycielski J. Independent sets in topological algebras. Fund Math, 1964, 55:139-147.