1. B. Giese , Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds, Pergamon, Oxford, 1988
2. D. P. Curran , in Comprehensive Organic Synthesis, ed. B. M. Trost and I. Fleming, Pergamon, Oxford, 1991, vol 4, p. 715
3. W. B. Motherwell and D.Crich, in Free Radical Chain Reactions in Organic Synthesis, Academic Press, London, 1992
4. J. E. Leffler , in An Introduction to Free Radicals, Wiley-Interscience, New York, 1993
5. J. Fossey , D.Lefort and J.Sorba, in Free Radicals in Organic Chemistry, John Wiley and Sons, Chichester, 1995