3 IZA Discussion Papers
IZA Discussion Paper No. 11319
publication in: Journal of Sports Economics, 2020, 21(4), 420-448
IZA Discussion Paper No. 8560
published in: Journal of Sports Economics, 2018, 19(6), 786-819
IZA Discussion Paper No. 1120
published in: Journal of Sports Economics, 2006, 7 (2), 119-149