1. A short history of alkaloids;Wink,1998
2. The nature and definition of an alkaloid;Pelletier,1983
3. Alkaloids;Hartmann,1991
4. Modes of action of alkaloids;Wink,1998
5. Diversity and variability of plant secondary metabolism: A mechanistic view;Hartmann;Entomol. Exp. Appl.,1996