Bonin, Holger, Klaus F. Zimmermann, R. Fahr and H. Hinte (2007), Immigration policy and the labor market: the German experience and lessons for Europe, Springer-Verlag, Berlin
Bonin, Holger, Klaus F. Zimmermann, R. Fahr and H. Hinte (2007), Immigration policy and the labor market: the German experience and lessons for Europe, Springer-Verlag, Berlin