9(日) Masanobu MASUDA, Katsuhisa KOJIMA. Japanese Social Security for the Elderly from a Viewpoint of Life Cycles[J]. Review of Population and Social Policy, No. 10, 2001, 37-54.
10Axel H BOrsch-Supan, Christina B Wilke. The german public pension system. How it was, how it will be[R]. MEA Discussion Paper,2003.13-15.
