Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Duisburg, Nordrhein-Westfalen, Germany
Erlangen, Bavaria, Germany
Rostock, Mecklenburg-Vorpommern, Germany
Santa Cruz, California, United States
Antwerp, Antwerp, Belgium
Hamburg, Hamburg, Germany
Portland, Oregon, United States
Konstanz, Baden-Wuerttemberg, Germany
Berlin, Berlin, Germany
Nürnberg, Bayern, Germany
Saarbruecken, Saarland, Germany
