1. Yu. P. Kozlov, Free Radicals and Their Role in Normal and Pathological Processes [in Russian], Moscow State University, Moscow (1973).
2. L. K. Obukhova and N. M. Emmanuel’, Usp. Khim., 52(3), 353–372 (1983).
3. I. B. Afanas’ev, Khim.-Farm. Zh., 19(1), 11–23 (1985).
4. M. D. Mashkovskii, Drugs [in Russian], Novaya Volna, Moscow (2000), pp. 291–299, 363–371.
5. I. A. Degterev and G. E. Zaikov, Khim.-Farm. Zh., 22(8), 910–919 (1988).