1. Faculty of Physics and Earth Sciences Leipzig University Linnéstrasse 5 04103 Leipzig Germany
2. Innovation Center Computer Assisted Surgery (ICCAS) Institute at the Medical Faculty Leipzig University Semmelweisstraße 14 04103 Leipzig Germany
3. Saxon Academy of Sciences and Humanities in Leipzig Structural Commission “Propagation in Nature, Technology and Society” Karl-Tauchnitz-Straße 1 04107 Leipzig Germany
4. Faculty of Mathematics and Informatics Leipzig University Augustusplatz 10 04109 Leipzig Germany