1. Ahlenius, S., Carlsson, A., Engel, J., Svensson, T., & Södersten, P. (1973). Antagonism by alpha-methyltyrosine of the ethanol-induced stimulation and euphoria in man. Clinical Pharmacology & Therapeutics, 14, 586–591.
2. Ahlenius, S., & Engel, J. (1973). On the interaction between pimozide and α-methyltyrosine. Journal of Pharmacy & Pharmacology, 25, 172–174.
3. Andén, N.-E., Alander, T., Grabowska-Andén, M., Liljenberg, B., Lindgren, S., & Thornström, U. (1984). The pharmacology of pre- and postsynaptic dopamine receptors: Differential effects of dopamine receptor agonists and antagonists. In Catecholamines: Neuropharmacology and central nervous system. Theoretical aspects (pp. 19–24). New York: Alan R. Liss.
4. Björklund, A., & Lindvall, O. (1986). Catecholaminergic brain stem regulatory systems. In Handbook of physiology: Section 1. The nervous system (Vol. 4, pp. 155–235). Bethesda, MD: American Physiological Society.
5. Bozarth, M. A. (1987). Ventral tegmental reward system. In J. Engel, L. Oreland, D. H. Ingvar, B. Pernow, S. Rössner, & L. Å. Pellborn (Eds.), Brain reward systems and abuse (pp. 1–33). New York: Raven Press.