Bergstrom, T. C., & Hartman, J. L. (2005). Demographics and the political sustainability of pay-as-you-go social security: Presented at CESIFO/DELTA conference on strategies for reforming pension schemes, November 2004. CES.
Chicago-Zitierstil (17. Ausg.)Bergstrom, Theodore C., und John L. Hartman. Demographics and the Political Sustainability of Pay-as-you-go Social Security: Presented at CESIFO/DELTA Conference on Strategies for Reforming Pension Schemes, November 2004. Munich: CES, 2005.
MLA-Zitierstil (9. Ausg.)Bergstrom, Theodore C., und John L. Hartman. Demographics and the Political Sustainability of Pay-as-you-go Social Security: Presented at CESIFO/DELTA Conference on Strategies for Reforming Pension Schemes, November 2004. CES, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.