1. G. K. Palii, V. P. Neporada, and N. D. Zheliba, Authors' Certificate 1982399 USSR, ?A method of determining immunological reactivity,? Otkrytiya, No. 12 (1984).
2. A. I. Nikolaev, L. A. Katsenovich, and Sh. T. Atabaev, Pesticides and Immunity [in Russian], Tashkent (1988).
3. K. Fedtke, Biochemistry and Physiology of the Action of Herbicides [Russian translation], Moscow (1985).
4. O. K. Khmel'nitskii, Abstracts of Proceedings of the 8th All-Union Congress of Pathological Anatomists [in Russian], Tbilisi (1989), p. 262.
5. M. S. Burstone, Enzyme Histochemistry and Its Application in the Study of Neoplasms, New York (1962).