4 IZA Discussion Papers
IZA Discussion Paper No. 12921
IZA Discussion Paper No. 8438
published in: Applied Economics, 2016, 48 (14), 1303-1316
IZA Discussion Paper No. 6818
published in: Applied Economics, 2014, 46, 952-965
IZA Discussion Paper No. 3110
published in: Journal of the Economics of Ageing, 2017, 9, 14-29