1. Altman, J. (1975): The environment and social behavior. Montery, Cal.: Brooks/Cole.
2. Argyle, M. (1969): Social interaction. London: Methuen.
3. Argyle, M. (1975): Bodily communication. London: Methuen.
4. Ashcraft, A./Scheflen, A. E. (1976): People space. New York: Doubleday.
5. Baily, K. G./Hartnett, J. J./Gibson, F. M. jr. (1972): Implied threat and the territorial factor in personal space. Psychological Reports 30, 263–270.