1. Nat. Prod. Rep. 1990, 447, and preceding art.;
2. ?Alkaloids: Chemical and Biological Perspectives?, Ed. J. Wiley and Sons, New York, 1983, Vol. 1. 33;
3. in ?The Alkaloids?, Ed. Academic Press, New York, 1987. Vol. 31, 193;
4. Chemicals from the glands of ants
5. Enantioselektive Synthesen chiraler Piperidinalkaloide