Unraveling the complexity of US presidential approval : a multi-dimensional semi-parametric approach Berlemann, Michael Enkelmann, Soeren Kuhlenkasper, Torben 2012 - HWWI EPflicht - frei zugänglich
Who leaves and when? : selective outmigration of immigrants from Germany Kuhlenkasper, Torben Steinhardt, Max Friedrich 2012 - HWWI EPflicht - frei zugänglich