1. Oral, obsessive and hysterical personality patterns: An investigation of psychoanalytic concepts by means of factor analysis;Lazare;Archs gen. Psychiat.,1966
2. Modern Factor Analysis;Harmon,1960
3. Introduction to Factor Analysis;Fruchter,1954
4. On the meaning of discrimination, classification, mixture, and clustering in statistics;Greenhouse,1965
5. Exploration in Personality;Murray,1938