1. Auto-shaping of the pigeon's key peck;Brown;Journal of the Experimental Analysis of Behavior,1968
2. The development of stimulus control through differential reinforcement;Jenkins,1969
3. Discrimination learning with the distinctive feature on positive or negative trials;Jenkins,1970
4. A theory of Pavlovian conditioning: variations in the effectiveness of reinforcement and nonreinforcement;Rescorla,1972
5. Effect of proximity of elements on the feature-positive effect;Sainsbury;Journal of the Experimental Analysis of Behavior,1971