1. Adams, W. B., Benson, J. A.: The generation and modulation of endogenous rhythmicity in the Aplysia bursting pacemaker neuron R15. In Noble, D., Bundle, T. L. (eds.)Progress in biophysics and molecular biology, vol. 46, pp. 1?49. Elmsford, NY: Pergamon Press, 1985
2. Alexander, J. C., Doedel, E. J., Othmer, H. G.: Resonance of phase-locking in excitable systems. In: Othmer, H. G. (ed.) Some mathematical questions in biology: the dynamics of excitable media. (Lect. Math. Life Sci., vol. 21, pp. 7?37.) Am. Math. Soc., Providence, RI
3. Alexander, D. C., Doedel, E. J., Othmer, H. G.: On the resonance structure in a forced excitable system. SIAM J. Appl. Math. 50, 1313?1418 (1990)
4. Alving, B. O.: Spontaneous activity in isolated somata of Aplysia pacemaker neurons. J. Gen. Physiol. 51, 29?45 (1968)
5. Argemi, J., Chagneux, H., Ducreux, C., Gola, M.: Qualitative study of a dynamical system for metrazol-induced paroxysmal depolarization shifts. Bull. Math. Biol. 46, 903?922 (1984)