3 IZA Discussion Papers
IZA Discussion Paper No. 4072
updated version published as 'Intensive Coaching of New Immigrants: An Evaluation Based on Random Program Assignment' in: Scandinavian Journal of Economics, 2012, 114 (2), 576-600
IZA Discussion Paper No. 3869
published in: Annales d'Economie et de Statistique, 2009, 95-96, 15-23
IZA Discussion Paper No. 3868
published in: Political Analysis, 2013, 21(4), 524-549