V. A. Golovina, S. A. Regirer, L. V. Rozenshtraukh, B. S. Solov'ev, A. I. Undrovinas, A. K. Tsaturyan, G. G. Chernaya, “Spontaneous wave-like contractions of cardiac muscle single cells. Experiment
and mathematical model”, Dokl. Akad. Nauk SSSR, 291:6 (1986), 1310–1314
