STEEPT: Egeland, B., & Erickson, M. (2004). Lessons from STEEP: Linking theory, research, and practice for the well-being of infants and parents. In A. Sameroff, S. McDonough, & K. Rosenthal (Eds.), Treating parent-infant relationship problems (pp. 213-242). New York: Guilford.

Circle of Security: Marvin, R., Cooper, G., Hoffman, K., & Powell, B. (2002). The Circle of Security Project: Attachment-based intervention with caregiver-preschool child dyads. Attachment and Human Development, 4, 107-124.