1. Forbes, and Duncan: Quart. J. Stud. Alcohol 12, 355 (1951); 14, 19 u. 22 (1953).
2. Gillissen, X.: Z. Hyg. 135, 388 (1952).
3. Gilissen u. Kliewe: Experientia (Basel) 11/6, 237 (1955).
4. Krusius, Vartia and Forsander: Ann. Med. exp. Fenn. 36, 424 (1958).
5. Laves, W.: Arch. exper. Path. u. Pharmakol. 223, 482 (1954).