@techreport{Ruckdeschel2009,
author = {Ruckdeschel, K. and Ette, A. and Hullen, G. and Leven, I. },
title= {Generations and Gender Survey: Documentation of the first wave in Germany},
year = {2009},
publisher = {Bundesinstitut für Bevölkerungswissenschaften },
address = {Wiesbaden},
}