TY - RPRT A1 - Spéder, Zs. T1 - Turning points of the life course: Research plan and questionnaire of the Hungarian Social and Demographic Panel Survey (HSDPS) Y1 - 2001 UR - http://www.demografia.hu/letoltes/dpa/panel_koncepcio_a.pdf PB - HCSO DRI CY - Budapest ER -