@techreport{Spéder2001,
author = {Spéder, Zs.},
title= {Turning points of the life course: Research plan and questionnaire of the Hungarian Social and Demographic Panel Survey (HSDPS)},
year = {2001},
URL = {http://www.demografia.hu/letoltes/dpa/panel_koncepcio_a.pdf},
publisher = {HCSO DRI},
address = {Budapest},
}