1. Rate-dependency of the behavioral effects of amphetamine;Dews,1977
2. A mathematical index of performance on fixed-interval schedules of reinforcement;Fry;J Exp Anal Behav,1960
3. Behavioral effects of caffeine, N6-(L-phenylisopropyl) adenosine, and their combination in the squirrel monkey;Glowa;J Pharmacol Exp Ther,1984
4. Mathematics underlying the rate-dependency hypothesis;Gonzalez;Science,1977
5. Effects of cocaine and d-amphetamine on behavior maintained under various schedules of food presentation in squirrel monkeys;Gonzalez;J Pharmacol Exp Ther,1977