4 IZA Discussion Papers
IZA Discussion Paper No. 14766
published in: Health Economics, 2023, 32 (12), 2819-2835
IZA Discussion Paper No. 2037
published in: Economics of Education Review, 2009, 28 (3), 393-402
IZA Discussion Paper No. 61
published in: K.F. Zimmermann (ed.), European Migration - What Do We Know? Oxford University Press, 2005
IZA Discussion Paper No. 59
published in: : K.F. Zimmermann (ed.), European Migration - What Do We Know? Oxford University Press, 2005