1. Memorandum C: A model for speech and silence distributions;Mosteller,1949
2. Time-patterns of speech in normal subjects;Verzeano;Journal of Speech and Hearing Disorders,1950
3. “Conversational” coupling of gaze behavior in prelinguistic human development;Jaffe;Journal of Psycho linguistic Research,1973
4. Mother and infant at play: The dyadic interaction involving facial, vocal and gaze behaviors;Stern,1974
5. The “packaging” of maternal stimulation in relation to infant facial-visual engagement;Beebe;Merrill-Palmer Quarterly,1980