1. Dissertation Technische Hochschule Darmstadt, 1988.
2. (2b) – in Methoden der Organischen Chemie (Ed.), vol. 10-1, p. 439, Thieme, Stuttgart 1971.
3. (3a) Reviews: in Methoden der Organischen Chemie (Ed.), vol. 10-1, p. 182, Thieme, Stuttgart 1971.
4. (3b) – Modern Synthetic Reactions, 2nd ed., p. 595, W. A. Benjamin, Inc., Menlo Park, California 1972.