1. J. Clarke,Superconducting Electronics, NATO ASI Series, Vol. F59, M. Nisenoff and M. Weinstock, eds. (Springer, Berlin) 1989.
2. Proceedings of successive International Conferences on Superconducting Quantum Interference Devices in Berlin: SQUID'76, SQUID'80, SQUID'85, H. D. Hahlbohm and H. Lubbig, eds. (de Gruyter, Berlin, 1976, 1980, 1985).
3. M. Odegnal,Sov. J. Low Temp. Phys. 11, 1 (1985).
4. B. V. Vasiliev and S. V. Uchaikin, P13-90-586, Preprint JINR, 1990. Dubna.
5. V. N. Polushkin and B. V. Vasiliev, P13-89-85, Preprint JINR, 1989, Dubna.