3 IZA Discussion Papers
IZA Discussion Paper No. 5141
published in: Advances in Life Course Research, 2010, 15 (2-3), 109 - 120
IZA Discussion Paper No. 2274
published in: International Migration Review, 2006, 40 (4), 899-926
IZA Discussion Paper No. 2269
published in: Population, Space and Place, 2007, 13 (5), 313 - 331