1. Hollister, L. E.: Chemical Psychoses; LSD and Related Drugs. Springfield, Ill., Charles C Thomas, Publisher, 1968, chap 7, pp 104–120.
2. Norepinephrine Metabolism and Drugs Used in the Affective Disorders: A Possible Mechanism of Action
3. Rickels, K. (Editor): Non-specific Factors in Drug Therapy. Springfield, Ill., Charles C Thomas, Publisher, 1968, p 139.
4. Clinical use of psychotherapeutic drugs: Current status
5. Drug therapy in depressions: Controlled evaluation of imipramine, isocarboxazide, dextroamphetamine-amobarbital, and placebo