1. 1. Bowlby J. El Vínculo Afectivo. Barcelona: Paidós; 1976.
2. 2. Bowlby J. La Separación Afectiva. Barcelona: Paidós; 1976.
3. 3. Main M, Solomon J. Discovery of a new, insecure disorganized/disorientated attachment pattern. In Brazelton TB. and Yogman MW, editors. Affective Development in Infancy, Norwood: Ablex; 1986. p. 95-124.
4. 4.Hesse E, Main M. Frightened, threatening, and dissociative parental behavior in low-risk samples: Description, discussion, and interpretations. Development and Psychopathology 2006;18(2):309-43. https://doi.org/10.1017/S0954579406060172
5. 5. Main M, Solomon J. Procedures for identifying infants as disorganized/disoriented during the Ainsworth Strange Situation. En: Greenberg MT, Cicchetti D, and Cummings, EM. Editores. Attachment in the preschool years: Theory, research, and intervention. Chicago: University of Chicago Press; 1990. p. 121-60.