1. Adamson, S., & Metzner, R. (1988). The nature of the MDMA experience and its role in healing, psychotherapy and spiritual practice. Revision, 10, 59–72.
2. Beck, J. (1994). Pursuit of Ecstasy: The MDMA experience. Albany: SUNY Press.
3. Bedi, G., & Redman, J. (2008). Ecstasy use and higher-level cognitive functions: Weak effects of Ecstasy after control for potential confounds. Psychological Medicine, 38(09), 1319–1330.
4. Bedi, G., Phan, K. L., Angstadt, M., & de Wit, H. (2009). Effects of MDMA on sociability and neural response to social threat and social reward. Psychopharmacology, 207(1), 73–83.
5. Benz, E. (1989). Halluzinogen-unterstützte Psychotherapie: Erhebung bei der Schweizerischen Ärztegesellschaft für psycholytische Therapie. Zürich.