1. University of Iceland, Reykjavík, Iceland
2. Technische Universität Dortmund, Germany and Technische Universität Darmstadt, Germany
3. Spanish National Research Council (CSIC), Cajal Institute, Madrid, Spain
4. University of Twente, Enschede, The Netherlands
5. International University of La Rioja, Logroño, Spain
6. Castilla-La Mancha University, Ciudad Real, Spain
7. Hocoma AG, Volketswil, Switzerland