@techreport{Kreyenfeld2011,
author = {Kreyenfeld, M. and Walke, R. and Salzburger, V. and C., Schnor. and Bastin, S. and Kuhnt, A.-K.},
title= {DemoDiff – Wave 1: Supplement to the pairfam data manual.},
year = {2011},
publisher = {Max Planck Institute for Demographic Research (MPIDR Technical Report; 2011–004)},
address = {Rostock},
}