@techreport{Luyten2007,
author = {Luyten, S. and Van Hecke, E.},
title= {De Belgische stadsgewesten 2001 [The Belgian regions]},
year = {2007},
publisher = {Algemene Directie Statistiek en Economische Informatie},
address = {Brussels},
number = {Statistics Belgium Working Paper 14},
}