Marvin, Robert S.
Marvin, R., Cooper, G., & Hoffman, K. (2002). The Circle of Security project: Attachment-based intervention with caregiver-pre-school child dyads. Attachment and Human Development, 4, 107-124.
Marvin, R., & Britner, P. (1999). Normative development: the ontogeny of attachment. In J. Cassidy & P. Shaver (Eds.), Handbook of attachment theory and research. pp. 44-67. New York:Guilford Press.