1. Cook L, Catania AB (1964) Effects of drugs on avoidance and escape behavior. Fed Proc 23:818–835
2. Cook L, Davidson AB (1973) Effects of behaviorally active drugs in a conflict-punishment procedure in rats. In: Garattini S, Mussini E, Randall LO (eds) The benzodiazepines. Raven Press, New York, NY, pp 379–404
3. Dantzer R (1975) Étude de l'activité des substances psychotropes sur le comportement de punition du porc. J Pharmacol (Paris) 6:323–340
4. Dantzer R, Roca M (1974) Tranquilizing effects of diazepam in pigs subjected to a punishment procedure. Psychopharmacologia 40:235–240
5. deVilliers P (1977) Choice in concurrent schedules and a quantitative formulation of the law of effect, In: Honig WK, Staddon JER (eds) Handbook of operant behavior. Prentice Hall, Engelwoods Cliffs, New Jersey, pp 233–287