83 IZA Discussion Papers
IZA Discussion Paper No. 667
published in: M. Herfurth, M. Kohli and K. F. Zimmermann (eds.), Arbeit in einer alternden Gesellschaft (Labor in an Aging Society), Leverkusen: Leske+Budrich, 2003, 131-177
IZA Discussion Paper No. 250
published in: Scandinavian Journal of Economics, 2003, 105 (3), 465-486
IZA Discussion Paper No. 183
published in: Slobodan Djajic (ed.), International Migration: Trends, Policy and Economic Impact, London/New York, 2021, 110-136