Affiliation: | 1.Offenburg University of Applied Sciences, Badstr. 24, 77652, Offenburg, Germany ;2.University of Freiburg, Georges-Köhler-Allee 102, 79110, Freiburg, Germany ;3.Fraunhofer Institute for Physical Measurement Techniques IPM, Heidenhofstr. 8, 79110, Freiburg, Germany ; |