1. H. O. House , Modern Synthetic Reactions, W. A. Benjamin, Menlo Park, CA, 1972, ch. 9–11.
2. J. C. Stowell , Carbonations in Organic Synthesis, Wiley, New York, 1979.
3. C. D. Gutsche , The Chemistry of Carbonyl Compounds, Prentice-Hall, Englewood Cliffs, NJ, 1967.
4. A. T. Nielsen and W. J.Houlihan, Organic Reactions, Wiley, New York, 1968, vol. 16, p. 1.