1. Novel opiate binding sites selective for benzomorphan drugs;Chang,1981
2. The effects of morphine and nalorphine-like drugs in the non-dependent, morphine-dependent and cyclazocine-dependent chronic spinal dog;Gilbert;J. Pharmacol. exp. Ther.,1976
3. Specific, high affinity ethylketocyclazocine binding in rat central nervous system: lack of evidence for ξ receptor;Hiller;J. Pharmacol. exp. Ther.,1980
4. Characterization of the ξ-subtype of the opiate receptor in the guinea-pig brain;Kosterlitz;Brit. J. Pharmacol.,1981