1
by Baake, Pio, Haucap, Justus, Kühling, Jürgen, Loetz, Sascha
Published 2007
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Schweitzer, Heike, Haucap, Justus, Kerber, Wolfgang, Welker, Robert
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG