1. Cheng JYS, Zhang M, Wei Z. (2007). A proactive strategy for the aging population that capitalizes on the talents of older adults in China. Journal of Applied Gerontology 26(5):454-471.
2. Warburton J, Paynter J, Petriwskyj A. (2007). Volunteering as a productive aging activity: Incentives and barriers to volunteering by australian seniors. Journal of Applied Gerontology 26(4):333-354.
3. Hakamies-Blomqvist L, Henriksson P, Falkmer T, Lundberg C, et al. (2002). Attitudes of primary care physicians toward older drivers: A Finnish-Swedish comparison. Journal of Applied Gerontology 21(1):58-69.