SchechterDS, WillheimE, HinojosaC, Scholfield-KleinmanK, TurnerJB, McCawJ, ZeanahCH, MyersMM: Subjective and objective measures of parent-child relationship dysfunction, child separation distress, and joint attention. Psychiatry, 73:130–144, 2010.
5.
ZERO TO THREE. Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood (Rev.). Washington, D.C: ZERO TO THREE Press, Inc, 2005.