Bartholomew K, Horowitz LM (August 1991). "Attachment styles among young adults: a test of a four-category model". J Pers Soc Psychol 61 (2): 226–44. doi:10.1037/0022-3514.61.2.226. PMID 1920064.
Pietromonaco PR, Barrett LF (December 1997). "Working models of attachment and daily social interactions". J Pers Soc Psychol 73 (6): 1409–23. doi:10.1037/0022-3514.73.6.1409. PMID 9418285.