1. Attachment and loss, vol. I: attachment;Bowlby,1969
2. Attachment and loss: retrospect and prospect;Bowlby;Am J Orthop,1982
3. Marvin R, O'Connor T. The formation of the parent-child attachment following privation. Paper presented at: Biennial meeting of the Society for Research in Child Development; April, 1999; Albuquerque, NM.
4. The psychological birth of the human infant: symbiosis and individuation;Mahler,1975
5. A secure base: parent-child attachment and healthy human development;Bowlby,1988