TY - JOUR A1 - Becker, C.M. A1 - Urzhumova, D.S. T1 - Pension burdens and labor force participation in Kazakstan Y1 - 1998 DO - 10.1016/S0305-750X(98)00107-7 JF - World Development VL - 26 IS - 11 SP - 2087 EP - -2103 ER -