1. BARNARD, G. A. (1963), “Contribution to the Discussion of a Paper by M. S. Barlett,”Journal of the Royal Statistical Society, Series B, 25, 294.
2. BECKER, R. A., CHAMBERS, J. M., and WILKS, A. R. (1988),The New S Language. A Programming Environment for Data Analysis and Graphics, Pacific Grove, CA: Wadsworth & Brooks/Cole.
3. BECHTEL, G. G. (1976),Multidimensional Preference Scaling, The Hague: Mouton.
4. BECHTEL, G. G., TUCKER, L. R., and CHANG, W.-C. (1971), “A Scalar Product Model for the Multidimensional Scaling of Choice,”Psychometrika, 36, 369–388.
5. CARROLL, J. D. (1972), “Individual Differences and Multidimensional Scaling,” inMultidimensional Scaling: Theory and Applications in the Behavioral Sciences, Vol. 1, Eds., R. N. Shepard, S. K. Romney, and S. B. Nerlove, New York: Seminar Press, 105–155.