ArgyleM.CookM.Gaze and mutual gaze. Cambridge: Cambridge Univer. Press, 1976.
2.
CouttsL. M.SchneiderF. W.Visual behavior in an unfocused interaction as a function of sex and distance. Journal of Experimental Social Psychology, 1975, 11, 64–77.
3.
VineI.Communication of facial-visual signals. In CrookJ. H. (Ed.), Social behavior in birds and mammals. New York: Academic Press, 1970. Pp. 279–354.