104 IZA Discussion Papers
IZA Discussion Paper No. 609
IZA Discussion Paper No. 362
published in: Economic Journal, 2002, 112 (482), 735-765
IZA Discussion Paper No. 302
published as "The Why, When and How of Immigration Amnesties" in: Journal of Population Economics, 2011, 24 (1), 285-316
IZA Discussion Paper No. 302
published as "The Why, When and How of Immigration Amnesties" in: Journal of Population Economics, 2011, 24 (1), 285-316