1. Zykov, V. S. Simulations of Wave Processes in Excitable Media (Manchester Univ. Press, 1988).
2. NATO ASI Series,1991
3. Winfree, A. T. in Lectures in Complex Systems (eds Nadel, L. & Stein, D.) 207–298 (Addison-Wesley, Reading, Massachusetts, 1993).
4. Markus, M. & Hess, B. Nature 347, 56–58 (1990).
5. Ito, H. & Glass, L. Phys. Rev. Lett. 66, 671–674 (1991).