1. Lowry, T. H., Richardson, K. S.: Mechanism and Theory in Organic Chemistry, New York, Harper 19812.
2. For an exception, see: Dewar, M. J. S., Dougherty, R. C.: The PMO Theory of Organic Chemistry, New York, Plenum Press 1975.
3. Davies, D. I., Parrott, M. J.: Free Radicals in Organic Synthesis, Berlin—Heidelberg—New York, Springer 1978; Barton, D. H. R., Zard, S. Z.: Phil. Trans. R. Soc. Lond. B311, 505 (1985).
4. Selectivity and Synthetic Applications of Radical Reactions (ed.) Giese, B., Tetrahedron 41, issue No. 19 (1985); Giese, B.: Radicals in Organic Synthesis, Oxford, Pergamon Press 1986.
5. Chem. Eng. News, April 13, 26 (1981); July 27, 38 (1981).