4 IZA Discussion Papers
IZA Discussion Paper No. 13358
IZA Discussion Paper No. 3504
published as 'Training and retirement patterns' in: Applied Economics, 2013, 45 (15), 1991-1999
IZA Discussion Paper No. 3065
published in: British Journal of Industrial Relations, 2008, 46 (3), 521 - 531
IZA Discussion Paper No. 1193
published in: American Economic Review, 2011, 101 (2), 819-843