1. Technology Centre Energy, University of Applied Sciences Landshut, Wiesenweg 1, 94099 Ruhstorf an der Rott, Germany
2. Department of Engineering, Faculty of Science, Technology and Medicine, University of Luxembourg, 1359 Luxembourg, Luxembourg
3. European Campus Rottal-Inn, Deggendorf Institut of Technology, Max-Breiherr-Straße 32, 84347 Pfarrkirchen, Germany