1. Bloxom, B. Individual differences in multidimensional scaling (Res. Bull. 68–45). Princeton, New Jersey: Educational Testing Service, 1968.
2. Carroll, J. D., & Chang, J. J.IDIOSCAL: A generalization of INDSCAL allowing IDIOsyncratic reference systems as well as an analytic approximation to INDSCAL. Paper presented at the Spring Meeting of the Psychometric Society, March 30–31, 1972, Princeton, New Jersey.
3. Cohen, H. S.Three-mode rotation to approximate INDSCAL structure. Paper presented at the annual meeting of the Psychometric Society, Palo Alto, California, March, 1974.
4. de Leeuw, J.An initial estimate for INDSCAL. Unpublished paper, Bell Telephone Laboratories, Murray Hill, June, 1974.
5. Harshman, R. A. Foundations of the PARAFAC procedure: Models and conditions for an “explanatory” multi-model factor analysis.UCLA Working Papers in Phonetics, 1970,16, 1–84.