@conference {jaehne1989d, title = {Optical measuring technique for small scale water surface waves}, booktitle = {Advanced Optical Instrumentation for Remote Sensing of the Earth{\textquoteright}s Surface from Space, SPIE Proceeding 1129, International Congress on Optical Science and Engineering, Paris, 24-28 April 1989}, year = {1989}, pages = {147--152}, doi = {10.1117/12.961496}, author = {Bernd J{\"a}hne and Bernd J{\"a}hne}, editor = {Stefan Waas and Stefan Waas} }