1. K. Fukui, Theory of Orientation and Stereoselection, Springer, Berlin (1975).
2. N. D. Epiotis, Theory of Organic Reactions, Springer, Berlin (1978).
3. I. Fleming, Frontier Orbitals and Organic Chemical Reactions, Wiley-Interscience, New York (1978).
4. S. V. Volovik, G. G. Dyadyusha, and V. I. Staninets, ?Delocalization model of regioselectivity and reactivity of free radicals in reactions of addition to olefins,? Teor. Éksp. Khim., 23, No. 2, 135?148 (1987).
5. S. V. Volovik, G. G. Dyadyusha, and V. I. Staninets, ?Concept of polarity of free radicals in reactions of addition to olefins,? Teor. Éksp. Khim., 22, No. 5, 562?571 (1986).