B.  Jähne, Klar, M., and Jehle, M., ?Data analysis?, Handbook of Experimental Fluid Mechanics. Springer, p. 1437--1491, 2007.

M.  Klar, ?Design of an endoscopic 3D Particle-Tracking Velocimetry system and its application in flow measurements within a gravel layer?. IWR, Fakultät für Physik und Astronomie, Univ.\ Heidelberg, 2005.

M.  Klar, Jehle, M., Jähne, B., Detert, M., and H., J. G., ?Analysis of subsurface gravel layer flow caused by turbulent open-channel flow using 3D PTV and pressure sensor techniques?, in BAW-Workshop Soil and Bed Stability - Interaction Effects between Geotechnics and Hydraulic Engineering, 2004.

M.  Jehle, Klar, M., Köhler, H. - J., and Heibaum, M., ?Bewegungsdetektion und Geschwindigkeitsanalyse in Bildfolgen zur Untersuchung von Sedimentverlagerungen?, in Mitteilungen des Instituts für Grundbau und Bodenmechanik, 2004, vol. 77, pp. 371-392.

M.  Detert, Jirka, G. H., Jehle, M., Klar, M., Jähne, B., Köhler, H. - J., and Wenka, T., ?Pressure fluctuations within subsurface gravel bed caused by turbulent open-channel flow?, in Proc. of River Flow 2004, 2004, pp. 695-701.

M.  Klar, Jehle, M., Detert, M., Jirka, G. H., Jähne, B., Köhler, H. - J., and Wenka, T., ?Simultaneous 3D PTV and micro-pressure sensor equipment for flow analysis in subsurface gravel layer?, in Proc. of River Flow 2004, 2004, p. 703--712.

M.  Klar, Stybalkowski, P., Spies, H., and Jähne, B., ?3D-Strömungsmessung in Kiesporen?, Nahbereichsphotogrammetrie in der Praxis, Beispiele und Problemlösungen. Wichmann, p. 247--250, 2002.

M.  Klar, Stybalkowski, P., Spies, H., and Jähne, B., ?A miniaturized 3-D particle-tracking velocimetry system to measure the pore flow within a gravel layer?, in Proc. 11th Int. Symp. Applications of Laser Techniques to Fluid Mechanics, 2002, p. 2.3.

M.  Klar, ?3D Particle-Tracking Velocimetry applied to Turbulent Open-Channel Flow over a Gravel Layer?, IWR, Fakultät für Physik und Astronomie, Univ.\ Heidelberg, 2001.