1. Becker, A. M.: Zur Psychopathologie der Lysergsäure-diäthylamid-wirkung. (On the psychopathology of the effect of lysergic acid diethylamide). Wien. Ztschr. Nervenh., 2:402–440, 1949.
2. Busch, Anthny K., and Johnson, Warre C.: L. S. D. 25 as an aid in psychotherapy. Dis. Nerv. Sys., 11:241–243, August 1950.
3. Condrau, Gion: Klinische Erfahrungen an Geistes Kranken mit Lysergsäure-diäthylamid. (Clinical experiences in mental patients with lysergic acid-diethylamide). Ejnar Munksgaard. Copenhagen. 24:9–32, 1949.
4. deGiacomo, U. (de Lecce, Italy): Données biologiques sur l'action psychopharmacologique de la diéthylamide de l'acide lysergique. (Biological data on the psychopathological action of lysergic acid diethylamide). Paper read at the Symposium of “chimie cérébrale” of the International Congress of Psychiatry, Paris, September 18–27, 1950.
5. Rinkel, M.: Discussion on L. s. D., clinic of the American Psychiatric Association, held at the annual meeting of the American Psychiatric Association, May 1, 1950, in Detroit. (1) J. Clin. and Exper. Psychopathol., XII:42, January 1951 (Van Ophuijsen Memorial Issue); (2) Discussion at symposium on “chimie cérébrale” of First World Congress of Psychiatry, Paris, September 18–27, 1950.