1. For a general discussion and definition of terminology, see: D.Seebach and E.Hungerbuhler, Modern Synthetic Methods, ed. R. Scheffold, Springer-Verlag, Berlin, 1980, vol. 2. p. 93.
2. Reviews on asymmetric catalysis: J. D.Morrison, Asymmetric Synthesis, Academic Press, New York, 1984; vol. 3B;
3. R. Noyori and M.Kitamura, in Modern Synthetic Methods, ed R. Scheffold, Springer-Verlag, Berlin, 1989, vol. 5, p. 115;
4. B. Bosnich , Asymmetric Catalysis, Martinus Nijhoff Publishers, Dordrecht, 1986;
5. H. B. Kagan , in Comprehensive Organometallic Chemistry, ed. G. Wilkinson, Pergamon, Oxford, 1982, vol. 8;