1. The origins of reciprocity: The early infant-mother interaction;Brazelton,1974
2. Early mother-infant reciprocity;Brazelton,1975
3. Three-month-old infants' reaction to simulated maternal depression;Cohn;Child Development,1983
4. The sequence of dyadic states at 3, 6, and 9 months;Cohn;Developmental Psychology,1987
5. Emotional expression in infancy: A bio-behavioral study;Emde;Psychological Issues,1976