1. Attachment and exploratory behavior of one-year-olds in a strange situation;Ainsworth,1969
2. Attachment, temperament, and social referencing: Interrelationships among three domains of infant affective behavior;Bradshaw,1984
3. Perception, appraisal and emotion: The onset of social referencing;Campos,1981
4. Mother-infant attachment: The importance of the mother's visual field.;Carr;Child Development,1975