https://scholars.cityu.edu.hk/en/publications/effects-of-postretirement-activities-on-retirees-well-being-the-m/
Effects of postretirement activities on retirees' well-being: The moderating role of childlessness...
https://ifp.nyu.edu/2015/journal-article-abstracts/effects-of-preretirement-work-complexity-and-postretirement-leisure-activity-on-cognitive-aging/
Effects of Preretirement Work Complexity and Postretirement Leisure Activity on Cognitive Aging -...