5 IZA Discussion Papers
IZA Discussion Paper No. 12252
IZA Discussion Paper No. 8098
published in: Industrial and Labor Relations Review, 2017, 70 (4), 865 - 893
IZA Discussion Paper No. 5695
IZA Discussion Paper No. 5225
published in: Labour Economics, 2011, 18 (3), 310-319
IZA Discussion Paper No. 5133