L. L. Carstensen and B. L. Fredrickson Influence of HIV Status on Cognitive Representation of Others // Health Psychology 17 (1998): 494–503; H. H. Fung, L. L. Carstensen, and A. Lutz Influence of Time on Social Preferences: Implications for Life-Span Development // Psychology and Aging 14 (1999): 595; B. L. Fredrickson and L. L. Carstensen Choosing Social Partners: How Old Age and Anticipated Endings Make People More Selective // Psychology and Aging 5 (1990): 335; H. H. Fung and L. L. Carstensen Goals Change When Life’s Fragility Is Primed: Lessons Learned from Older Adults, the September 11 Attacks, and SARS // Social Cognition 24 (2006): 248–278.