1. Blizard, D. W., and Bailey, D. W. (1979). Genetic correlation between open-field activity and defecation: Analysis with the CXB recombinant inbred strains.Behav. Genet.,9:349?357.
2. Crow, J. F., and Kimura, M. (1970).An Introduction to Population Genetics Theory, Harper and Row, New York.
3. DeFries, J. C., and Hegmann, J. P. (1970). Genetic analysis of open-field behavior. In Lindzey, G., and Theissen, D. D. (eds.),Contributions to Behavior-Genetic Analysis: The Mouse as a Prototype, Appleton-Century-Crofts, New York, pp. 23?56.
4. Dickerson, G. E. (1959). Techniques for research in quantitative animal genetics. InTechniques and Procedures in Animal Production Research, American Society of Animal Production.
5. Ehrman, L., and Parsons, P. A. (1976).The Genetics of Behavior, Sinauer Associates, Sunderland, Mass.