@techreport{Fokkema2008,
author = {Fokkema, T. and TerBekke, S. and Dykstra, P.A.},
title= {Solidarity between parents and their adult children in Europe},
year = {2008},
publisher = {Netherlands Interdisciplinary Demographic Institute},
address = {Den Haag},
number = {NIDI reports; 76},
}