1. Baum, W. M. (1974). “On two types of deviation from the matching law”. Journal of the Experimental Analysis of behavior, 22, 231–42.
2. Baum, W. M. (1979). “Matching, undermatching and overmatching in studies of choice”. Journal of the Experimental Analysis of behavior, 32, 269–81.
3. Baum, W. M. & Nevin, J. A. (1981). “Maximization theory: some empirical problems”. Behavioral and Brain Sciences, 4, 389–90.
4. Catania, A. C. (1992). Learning, 3 itrd edn. Englewood Cliffs, NJ: Prentice-Hall.
5. Davison, M. & McCarthy, D. (eds) (1988a). The Matching Law: A Research Review. Hillsdale, NJ: Erlbaum.