1. É. P. Bekhtereva and N. S. Sapronov, Farmakol. Toksikol., No. 5, 563–566 (1972).
2. V. K. Gorodetskii, Current Methods in Biochemistry [in Russian], Moscow (1964), Vol. 1, pp. 311–316.
3. É. V. Zeimal', M. Ya. Mikhelson, and R. S. Rybolovlev, in: The Physiological Function of Acetylcholine and the Search for New Drugs [in Russian], Leningrad (1957), pp. 424–441.
4. G. P. Krachun, Vestn. AMN SSSR, No. 9, 84–91 (1977).
5. É. Sh. Matlina and T. B. Rakhmanova, in: Methods of Study of Some Humoral Control Systems [in Russian], Moscow (1967), pp. 136–143.