145 IZA Discussion Papers
IZA Discussion Paper No. 1859
published in: SERIEs, Journal of the Spanish Economic Association (2012), 3, 367-393.
IZA Discussion Paper No. 1843
published in: Journal of Sports Economics, 2008, 9 (1), 3-19
IZA Discussion Paper No. 1792
IZA Discussion Paper No. 1458
IZA Discussion Paper No. 568