@techreport{De Valk2001,
author = {De Valk, H.A.G. and Esveldt, I. and Henkens, K. and Liefbroer, A.C.},
title= {Oude en nieuwe allochtonen in Nederland. Een demografisch profiel [Old and new foreigners in the Netherlands. A demographic profile]},
year = {2001},
publisher = {WRR},
address = {The Hague},
number = {Werkdocument W123},
}