David Watson and Auke Tellegen, «Toward a Consensual Structure of Mood», Psychological Bulletin 98, no. 2 (1985):219–235.

Hsing-Jung Chen and Pamela Kovacs, «Working with Families in Which a Parent Has Depression: A Resilience Perspective», Families in Society: The Journal of Contemporary Social Services 94, no. 2 (2013): 114–120; Constance Hammen, «Risk and Protective Factors for Children of Depressed Parents», in Resilience and Vulnerability: Adaptation in the Context of Childhood Adversities, ed. Suniya S. Luthar (New York: Cambridge University Press, 2003), 51–75; Rebecca Pargas et al., «Resilience to Maternal Depression in Young Adulthood», Developmental Psychology 46, no. 4 (2010): 805–814.