1. B. D. Josephson, Phys. Lett.,1, 251 (1962).
2. B. D. Josephson, Rev. Mod. Phys.,36, 216 (1964).
3. Yu. V. Tarbeev et al., Izmer. Tekh., No. 12, 3 (1981).
4. V. I. Krzhimovskii et al., Izmer. Tekh., No. 2, 31 (1983).
5. Yu. G. Mamaladze and O. D. Cheishvili, Pis'ma Zh. Eksp. Teor. Fiz.,2, 123 (1965).