143 IZA Discussion Papers
IZA Discussion Paper No. 286
published in: Ralph Rotte / Peter Stein (eds.), Migration Policy and the Economy: International Perspectives, Munich 2001
IZA Discussion Paper No. 274
published in: European Sociological Review, 2002, 18 (3), 271-288
IZA Discussion Paper No. 190
published in: B.E. Journal of Economic Analysis and Policy: Advances in Economic Analysis and Policy, 2007, 7 (1), Article 62