1. Department for Computational Neuroscience, Inst. Physics-3, Georg-August-Universität Göttingen, Germany
2. Faculty of Informatics, Vytautas Magnus University, Lithuania
3. Institute for Artificial Intelligence, University of Bremen, Germany
4. Department of Materials & Production, Robotics and Automation Group, Aalborg University, Denmark
5. Department of Automatics, Biocybernetics, and Robotics, Jožef Stefan Institute, Slovenia
6. Maersk Mc-Kinney Moeller Institut, South Denmark University, Denmark