Jürgen Schupp, Bernd Weber, Martin Reuter, Christian Montag, Nico Siegel, Thomas Dohmen, Uwe Sunde, Gert G. Wagner, Armin Falk
Improving Survey Methods : 1st International Conference of the German Priority Programme on Survey Methodology (PPSM)
Bremen, 12.11.2009 - 13.11.2009