1. G. O. Bekker (editor), An Introduction to the Photochemistry of Organic Compounds [in Russian], Leningrad (1976), pp. 89–124.
2. Ibid., pp. 125–160.
3. A. S. Elina and E. N. Padeiskaya, Sb. Tr. Vses. Nauchn.-Issled. Khim.-Farm. Inst., No. 2, 197–209 (1971).
4. E. N. Padeiskaya, in: New Chemotherapeutic Drugs for the Treatment of Patients with Infectious Diseases [in Russian], Moscow (1976), pp. 89–103.
5. M. J. Haddadin, G. Acopian, and C. H. Issidorides, J. Org. Chem.,36, 514–518 (1971).