@techreport{Dykstra2005,
author = {Dykstra, P.A. and Kalmijn, M. and Knijn, T.C.M. and Komter, A.E. and Liefbroer, A.C. and Mulder, C.H.},
title= {Codebook of the Netherlands Kinship Panel Study, a Multi-Actor, Multi-Method Panel Study on Solidarity in Family Relationships, Wave 1},
year = {2005},
publisher = {Netherlands Interdisciplinary Demographic Institute},
address = {The Hague},
number = {NKPS Working Paper No. 4},
}