@inbook{Knijn2006,
author = {Knijn, T. and Liefbroer, A.C.},
title= {More kin than kind: instrumental support in families},
year = {2006},
editor = {Dykstra, P.A.},
editor = {Kalmijn, M.},
editor = {Knijn, T.},
editor = {Komter, A.},
editor = {Liefbroer, A.C.},
editor = {Mulder, C.H.},
booktitle = {Family solidarity in the Netherlands},
address = {Amsterdam},
publisher = {Dutch University Press},
pages = {89--105},
}