1. Ahrens, K. R., DuBois, D. L., Richardson, L. P., Fan, M., & Lozano, P. (2008). Youth in foster care with adult mentors during adolescence have improved adult outcomes. Pediatrics, 121, 246–252.
2. Ahrens, K. R., DuBois, D. L., Garrison, M., Spencer, R., Richardson, L. P., & Lozano, P. (2011). Qualitative exploration of relationships with important non-parental adults in the lives of youth in foster care. Children and Youth Services Review, 33, 1012–1023.
3. Ainsworth, M. D. S. (1989). Attachment beyond infancy. The American Psychologist, 44, 709–716.
4. Allen, J. P. (2008). The attachment system in adolescence. In J. Cassidy & P. R. Shaver (Eds.), Handbook of attachment: Theory, research, and clinical applications (2nd ed., pp. 419–435). New York: Guilford Press.
5. Allen, J. P., & Land, D. (1999). Attachment in adolescence. In J. Cassidy & P. R. Shaver (Eds.), Handbook of attachment: Theory, research, and clinical applications (pp. 319–335). New York: Guilford.