by Dr. Oliver Klöck
by Dr. Michael Brüggemann and Dr. Melanie Moser
Available in Czech
by Markéta Deimelová and Blanka Vlachová
by Paolo Palmigiano
by multiple authors
by Szymon Gołębiowski
by Dr. Marco Hartmann-Rüppel, Dipl.-Volkswirt and Stephan Manuel Nagel, LL.M. (EUI)