1. (b) J. B. Sweeney, Chem. Soc. Rev., 38, 1027 (2009)
2. (c) L. Kürti, B. Czakó, “Strategic Applications of Named Reactions in Organic Synthesis” Elsevier, Amsterdam, 2005
3. (d) “Nitrogen, Oxygen and Sulfur Ylide Chemistry” ed. by J. S. Clark, Oxford University Press, Oxford, 2002
4. (e) I. E. Markó, “Comprehensive Organic Synthesis” Vol. 3, Chap. 3.10, eds. by B. M. Trost, I. Fleming, Pergamon, Oxford, 1991