23 IZA Discussion Papers
IZA Discussion Paper No. 2461
published in: International Journal of Manpower, 2009, 30 (1-2), 127-144
IZA Discussion Paper No. 2212
published in: Journal of Population Economics, 2009, 22 (4), 859 - 880
IZA Discussion Paper No. 1629
published in: George J. Borjas (ed.), Mexican Immigration to the United States, Chicago: University of Chicago Press, 2007, 229-267
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