1. For example, a) Asymmetric Catalysis in Organic Synthesis, John Wiley, New York, 1994, p. 378;
2. (b) Catalytic Asymmetric Synthesis (Ed.: ), VCH, Weinheim, 1993, p. 476;
3. (c) Stereoselective Synthesis, VCH, Weinheim, 1987, p. 368;
4. (d) Asymmetric Catalysis, Martinus Nijhoff, Dordrecht, 1986, p. 160;
5. (d) Asymmetric Synthesis, Vol. 5 (Ed.: ), Academic Press, New York, 1985, p. 391.