1. A. N. Aliev, Experimental Analysis of Mechanisms of Toxic Action in Anaerobic Infection, Candidate Dissertation, Moscow (1956).
2. S. P. Zaeva, Zh. Mikrobiol., No. 6, 42 (1938).
3. G. N. Kryzhanovskii, Tetanus, Problems in Pathogenesis, Doctoral Dissertation, Moscow (1963).
4. K. I. Matveev, Botulism [in Russian], Moscow (1959), p. 208.
5. Z. N. Khodorova, A Study of Certain Conditions of Toxin Production and Immunizing Activity of Oedematiens Toxoid, Candidate Dissertation, Khar'kov (1954).