1. Patterns of attachment: assessed in the stranger situation and at home;Ainsworth,1978
2. Attachment styles among young adults: a test of a four-category model;Bartholomew;Journal of Personality and Social Psychology,1991
3. Attachment and Loss;Bowlby,1969
4. Attachment and loss, vol. 2;Bowlby,1973
5. Attachment and loss, vol. 3;Bowlby,1973