1. FitzHugh, R.: Mathematical models of excitation and conduction in nerve. Ch. I in Biological Engineering. Schwann, H. P. (ed.). New York: McGraw-Hill 1969
2. Keener, J. P., Hoppensteadt, F. C., Rinzel, J.: Integrate and fire models. SIAM J. on Applied Mathematics 41, No. 3, 503?517 (1981)
3. Guttman, R., Feldman, L.: Frequency entrainment of squid axon membrane. Preprint
4. Hoppensteadt, F. C.: Electrical models of neurons. In: Mathematical aspects of physiology. Hoppensteadt, F. C. (ed.). Amer. Math. Soc. Lects. in App. Math., Vol. 19, 1981
5. Winfree, A. T.: The geometry of biological time. Berlin-Heidelberg-New York: Springer 1980