1. Theoretical treatments of differential reward in multiple choice learning and two-person interactions;Estes,1962
2. Effects of increased incentives upon the use of threat in bargaining;Gallo;Journal of Personality and Social Psychology,1966
3. Social behavior: its elementary forms;Homans,1961
4. Mathematics of statistics. Part two;Kenney,1961
5. Reward level and game playing behavior;McClintock;Journal of Conflict Resolution,1966