1. Belousov, B. P., inSbornik Referatov po Radiacioni Medicine( Medgiz, Moscow, 1959 ), p. 145.
2. Zaikin, A. and Zhabotinskii, A. M.Nature 225535 (1970).
3. Winfree, A. T.Science 181937 (1973).
4. Winfree, A. T.When Time Breaks Down(Princeton University Press, Princeton, 1987 ).
5. Müller, S. C., Plesser, T., and Hess, B.Science 230, 661 (1985).