1. (a) W. Theilheimer. “Synthetic Methods of Organic Chemistry.” Karger, Basel.
2. (b) Houben-Wey. “Methoden der organischen Chemie.” Thieme, Stuttgart.
3. (c) “Organic Reactions.” Wiley, New York.
4. (d) “Organic Synthesis.” Wiley, New York.
5. Centenary lecture. Computer-assisted analysis of complex synthetic problems