1. L. N. Chupina, V. F. Shner, G. I. Gritsina, A. I. Terekhina, and N. N. Suvorov, Khim. Geterotsikl. Soedin., No. 4, 466 (1984).
2. N. N. Suvorov, V. S. Shashkov, Chemistry and Pharmacology of Agents for the Prophylaxis of Radiation Sickness [in Russian], Atomizdat, Moscow (1975).
3. N. N. Suvorov, G. A. Chernov, L. Kh. Vinograd, M. M. Vigdorchik, G. N. Il'ina, and N. I. Lisina, Fifth All-Union Colloquium: Chemistry, Biochemistry, and Pharmacology of Indole Derivatives. Summaries of Reports [in Russian], Izd. Tbilissk. Univ. (1981), p. 110.
4. H. Ishii, J. Murukami, K. Hosoya, H. Takeda, I. Suzuki, and N. Ikeda, Chem. Pharm. Bull. (Tokyo), 21, 1481 (1973).
5. H. Ishii, J. Murukami, H. Takeda, and T. Furuse, Chem. Pharm. Bull. (Tokyo), 22, 1981 (1974).