5 IZA Discussion Papers
IZA Discussion Paper No. 12142
revised version published in: Plos One, 2020, 15 (2), e0227758
IZA Discussion Paper No. 9404
published in: International Journal of Manpower, 2015, 36 (8), 1181-1206
IZA Discussion Paper No. 5069
IZA Discussion Paper No. 1220
published in: Applied Economics Quarterly, 2004, 50 (4), 363 - 378
IZA Discussion Paper No. 1034
published in: [Regional Studies], 2006, 40(3), 1-12