Harshman, R. A. & Lundy, M. E. (1984), The PARAFAC model for three-way factor analysis and multidimensional scaling, in H. G. Law; C. W. Snyder Jr; J. A. Hattie & R. P. McDonald, ed., 'Research methods for multimode data analysis' , Praeger, New York , pp. 122--215 .