1. Theory of data;Coombs,1964
2. A portfolio theory of risk preference;Coombs,1968
3. Risk-preference in coin-toss games;Coombs;Journal of Mathematical Psychology,1969
4. Components of risk in decision making: Probability and variance preferences;Coombs;Journal of Experimental Psychology,1960
5. Some characteristics of choice behavior in risky situations;Coombs;Annals of the New York Academy of Sciences,1961