1. Ecological settings and processes in developmental systems. Volume 4 of the Handbook of child psychology and developmental science;M. H. Bornstein,2015
2. The development of the person: The Minnesota study of risk and adaptation from birth to adulthood;L. A. Sroufe,2009
3. Attachment and loss: Vol. 1. Attachment;J. Bowlby,1969
4. Object relations, dependency, and attachment: A theoretical review of the infant-mother relationship;M. D. S. Ainsworth,1969
5. Patterns of attachment: A psychological study of the strange situation;M. D. S. Ainsworth,1974