Aristotle University of Thessaloniki [Thessaloniki, Greece]

Brandenburg University of Technology (BTU) [Cottbus, Germany]

KU Leuven (KUL) [Leuven, Belgium]

Technical University of Berlin (TUB) [Berlin, Germany]

University of Erlangen-Nuremberg (FAU) [Erlangen, Germany]

University of Leoben [Leoben, Austria]