1. Barfield, Richard and James Morgan. 1969. Early Retirement, The Decision and the Experience. Ann Arbor: University of Michigan Press.
2. Beck, Scott. 1985. “Determinants of Labor Force Activity among Retired Men.” Research on Aging 7:251–80.
3. Brubaker, Ellie and Timothy Brubaker. 1992. “The Context of Retired women as Caregivers.” Pp. 222–235 in Families and Retirement, edited by M. Szinovacz, D. J. Ekerdt, and B. Vinick. Newbury Park: Sage Publications.
4. Butrica, Barbara, Howard Iams, Karen Smith, and Eric Toder. 2009. “The Disappearing Defined Benefit Pension and Its Potential Impact On The Retirement Incomes of Baby Boomers.” Social Security Bulletin 69(3):1–27.
5. Calasanti, Toni. 1993. “Bringing in Diversity: Toward an Inclusive Theory of Retirement.” Journal of Aging Studies 7(2):133–50.