1. Neuropeptide Y in hypothalamic paraventricular nucleus: a center coordinating energy metabolism;Billington;Am. J. Physiol.,1994
2. R.K., Bodnar, Opioid receptor subtype antagonist and ingestion, in: S.J. Cooper, P.G. Clifton (Eds.), Drug Receptor Subtypes and Ingestive Behaviour, Academic Press, London, 1996, pp. 127–146.
3. Discriminative stimulus properties of narcotic analgesic drugs;Colpaert;Pharmacol. Biochem. Behav.,1978
4. Discriminative stimulus properties of fentanyl and morphine: tolerance and dependence;Colpaert;Pharmacol. Biochem. Behav.,1976
5. B.A. Gosnell, A.S. Levine, Stimulation of ingestive behavior by preferential and selective opioid agonists, in: S.J. Cooper, P.G. Clifton (Eds.), Drug Receptor Subtypes and Ingestive Behaviour, Academic Press, London, 1996, pp. 147–166.