1. Boon, P. N. M., Strackee, J.: A population of coupled oscillators. J. theor. Biol. 57, 491–500 (1976)
2. Brodsky, W. Y.: Protein synthesis rhythm. J. theor. Biol. 55, 167–200 (1975)
3. Chance, B., Pye, E.K., Ghosh, A. K., Hess, B.: Biological and Biochemical Oscillators. New York: Academic Press 1973
4. Cummings, F. W.: A biochemical model of the circadian clock. J. theor. Biol. 55, 455–470 (1975)
5. Edmunds, L.N., Cirillo, V.P.: On the interplay among cell cycle, biological clock and membrane transport control systems. Int. J. Chronobiol. 2, 233–246 (1974)