23 IZA Discussion Papers
IZA Discussion Paper No. 188
published in: Labour Economics, 2004, 11 (3), 293-313
IZA Discussion Paper No. 132
published in: Explorations in Economic History, 2001, 38 (4), 478-502
IZA Discussion Paper No. 48
published in: Scottish Journal of Political Economy, 1999, 46 (4), 419-436
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