1. M. M. Dubinin and V. A. Astakhov, this issue, p. 3.
2. M. M. Dubinin and V. A. Astakhov, this issue, p. 8.
3. V. A. Astakhov and M. M. Dubinin, this issue, p. 13.
4. B. P. Bering and V. V. Serpinskii, Dokl. AN SSSR,114, 1254 (1957).
5. B. P. Bering, M. M. Dubinin, and V. V. Serpinskii, Izv. AN SSSR, Ser. Khim., 981 (1959).