CARTWRIGHT, D. , & ZANDER, A. (eds.) (1953). Group dynamics: research and theory. Evanston, Ill.: Row Peterson; London: Tavistock Publications .
2.
FESTINGER, L. (1954). A theory of social comparison processes . Hum. Relat.7, 117-141 .
3.
JACKSON, J. & SALTZSTEIN, H. (1958). The effects of person-group relationships on conformity processes . J. abnorm. soc. Psychol.57, 17-24 .
4.
STOTLAND, E. , THORLEY, S. , THOMAS, E. , COHEN, A. R. & ZANDER, A. (1957). The effects of group expectations and self-esteem upon self-evaluation . J. abnorm. soc. Psychol.54, 55-63 .
5.
THOMAS, E. (1957). Effects of facilitative role interdependence on group functioning . Hum. Relat.10, 347-366 .