1. United Nations Narcotic Laboratory Document. ( (1975) Studies on the chemical composition of khat. III. Investigations on the phenylalkylamine fraction. MNAR/11/75, GE.75-12624.United Nations,Geneva.
2. United Nations Narcotic Laboratory Document. ( (1974) Studies on the chemical composition of khat. I. Extraction, screening investigations and solvent separation of khat components. MNAR/12/74, GE.74-12580.United Nations,Geneva.
3. Methcathinone: A new and potent amphetamine-like agent
4. Savenko, V. G., Semkin, E. P., Sorokin, V. I., and Kazankov, S. P. (1989) Expert examination of narcotic substances obtained from ephedrine. USSR Ministry of the Interior All-Union Scientific Research Institute Report, Moscow, pp1–22.
5. Jacob, P. and Shulgin, A. T. (1996) Novel N-substituted 2-amino-3′,4′-methylene-dioxypropiophenones. WO Patent 9639133, December 12, 1996.