Wagner, Gert G. Max Planck Institute for Human Development, Max Planck Society;
Infurna, F. J., Gerstorf, D., Ram, N., Schupp, J., Sprangers, M. A. G., & Wagner, G. G. (2014). Linking concurrent self-reports and retrospective proxy reports about the last year of life: A prevailing picture of life satisfaction decline. The Journals of Gerontology: B, Psychological Sciences and Social Sciences, 69(5), 695-709. doi:10.1093/geronb/gbt055.