1. Association AP: Diagnostic and statistical manual of mental disorders, 4th edition, text revision. 2000, Washington, DC , American Psychiatric Press, Inc.
2. Zero to Three: Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood. 2005, Washington, DC , Zero to Three
3. National Collaborating Centre for Mental Health: Depression in children and young people Identification and management in primary, community and secondary care. 2005, London , National Institute for Health and Clinical Excellence, 68.
4. Weiss B, Catron C: The specificity of comorbidity of aggression and depression in children. Journal of Abnormal and Social Psychology. 1994, 22: 389-401.
5. Zigler E, Glick M: The developmental approach to adult psychopathology. The Clinical Psychologist. 2001, 54 (4): 2-11.