1. R. Kh. Freidlina, Advances in Free-Radical Chemistry, G. H. L. Williams (ed.), Vol. 1. Academic Press, New York (1965), p. 247.
2. R. Kh. Freidlina and A. B. Terent'ev, Advances in Free-Radical Chemistry, J. Heyden (ed.), Vol. 6, Academic Press, New York (1980), p. 11.
3. N. V. Kruglova and T. N. Skokova, Izv. Akad. Nauk SSSR, Ser. Khim., 867 (1983).
4. T. T. Vasil'eva and R. Kh. Freidlina, Izv. Akad. Nauk SSSR, Ser. Khim., 2373 (1976).
5. R. G. Gasanov, T. T. Vasil'eva, and R. Kh. Freidlina, Izv. Akad. Nauk SSSR, Ser. Khim., 817 (1978).