1. Helmut Schmidt University/University of the Federal Armed Forces Hamburg; Holstenhofweg 85, 22043 Hamburg Germany
2. Zuse Institute Berlin; Takustra_e 7, 14195 Berlin Germany
3. Bern University of Applied Science, School of Engineering, https://maps.google.com/?q=Quellgasse+10&entry=gmail&source=g; Quellgasse 10, 2105 Biel Switzerland