4P .C.Rother,M.Catenaro,G.Schwab.Ageing and Pensions in the Euro Area Survey and Projection Results[J].Social Protection Discussion Paper Series No.0307.
5Richard Disney. OECD Public Pension Programmes in Crisis:AnEvaluation of the Reform Options[J].Social Protection Discussion Paper Series,No.9921.August 1999.
6Rodrigo Acu?a R.Augusto Iglesias P. Chile's Pension Reform After 20years [EB/OL].Social Protection Unit Human Development Network, World Bank papers, No. 0129.