1. European Commission (2005) Official J EU:L 127:
2. United Nations Office on Drugs and Crime (UNODC) (2013) The challenge of new psychoactive substances. Global SMART Programme. http://www.unodc.org/documents/scientific/NPS_2013_SMART.pdf , pp. 1–122
3. Ott J (1996) Pharmacotheon: entheogenic drugs, their plant sources and history. Natural Products, Kennewick
4. Ott J (2001) Shamanic snuffs or entheogenic errhines. Entheobotanica, Solothurn
5. Szara S (1970) DMT (N, N-Dimethyltryptamine) and homologues: clinical and pharmacological considerations. In: Efron DH (ed) Psychotomimetic drugs. Raven, New York, pp 275–298