1. Multidimensional preference scaling.;Bechtel,1976
2. Multidimensional unfolding: Determining the dimensionality of ranked preference data;Bennett;Pyschometrika,1960
3. Discrete multivariate analysis: Theory and practice.;Bishop,1975
4. Individual differences and multidimensional scaling;Carroll,1972
5. Psychological scaling without a unit of measurement;Coombs;Psychological Review,1950