About this article
Published Online: Oct 01, 2013
Page range: 147 - 155
DOI: https://doi.org/10.2478/jos-2013-0008
This content is open access.
Daniel Defays
Eurostat, Directorate for Corporate Statistical and IT Services, Bâtiment Jean Monnet, L-2920 Luxembourg, LUXEMBURG
Jean-Marc Museux
Eurostat, Directorate for Corporate Statistical and IT Services, Bâtiment Jean Monnet, L-2920 Luxembourg, LUXEMBURG