205 IZA Discussion Papers
IZA Discussion Paper No. 2200
published in: Journal of Econometrics, 2007, 142 (2), 785-806
IZA Discussion Paper No. 1659
published as: 'Life-cycle Effects of Age at School Start' in: Economic Journal, 2014, 124, 977-1004
IZA Discussion Paper No. 1605
IZA Discussion Paper No. 1122
published in: Review of Economics and Statistics, 2007, 89 (4), 721-736
IZA Discussion Paper No. 827