Argygle, M. and Dean, J.Eye-contact, distance and affiliation. Sociometry , 1965, 28, 289-304.
2.
Exline, R., Gray, D. and Schuette, D.Visual behavior in a dyad as affected by interview content and sex of respondent . Journal of Personality and Social Psychology1965, 1, 201-209.
3.
Jourard, S. & Friedman, R.Experimenter-subject "distance" and self-disclosure. Journal of Personality and Social Psychology, 1970, 15, 278-282.
4.
Reece, M. and Whitman, S.Expressive movements, warmth and verbal reinforcement. Journal of Abnormal and Social Psychology, 1962, 64, 234-236.