404 IZA Discussion Papers
IZA Discussion Paper No. 262
IZA Discussion Paper No. 261
published in: Scandinavian Journal of Economics, 2005, 107 (2), 375-394
IZA Discussion Paper No. 234
published in: Schmollers Jahrbuch: Zeitschrift für Wirtschafts- und Sozialwissenschaften / Journal of Applied Social Science Studies, 2001, 121 (3), 53-406
IZA Discussion Paper No. 18