1. B. W. Halstead: Poisonous and Venomous Marine Animals of the World, vol. 1. US GPO, Washington, DC 1965. pp. 1–29.
2. G.A. Emerson and C. H. Taft: Toxicol. Rep. Biol. Med. 3, 302 (1945).
3. R. F. Nigrelli: Biochemistry and Pharmacology of Compounds Derived from Marine Organisms, Ann. NY Acad. Sci., New York 1960.
4. H.C. Freudentahl: Drugs From the Sea, Marine Technol. Soc., Washington, DC 1968.
5. A. Der Marderosian: J. Pharm. Sci. 58, 1 (1969).