1. F. Antoni, H. Kozinets, and H. Kotelesh, Atom. Energy Rev.,4, No. 3 (1966).
2. Association of British Pharmaceutical Industry. The Use of Gamma-Radiations Sources for the Sterilization of Pharmaceutical Products, London (1960), p. 5.
3. G. C. Colavos and B. W. Churchill, J. AmPharm. Ass.,46, 580 (1957).
4. H. G. Grainger and W. P. Hutchinson, J. Pharm. (Lond.),9, 343 (1957).
5. Z. V. Ermol'eva and V. I. Pochapinskii, Med. Prom. SSSR, No. 1, 33 (1961).