@misc{ansmann_combined_raman_1991, 
author={Ansmann, A., Riebesell, M., Wandinger, U., Weitkamp, C., Michaelis, W.},
title={Combined Raman elastic-backscatter lidar for the independent measurement of aerosol backscatter and extinction profiles},
year={1991},
howpublished = {GKSS report},
note = {Ansmann, A.; Riebesell, M.; Wandinger, U.; Weitkamp, C.; Michaelis, W.: Combined Raman elastic-backscatter lidar for the independent measurement of aerosol backscatter and extinction profiles. In: National Center for Atmospheric Research (Ed.): Symposium on Lower Tropospheric Profiling: Needs and Technologies, a symposium to critically review and evaluate scientific needs and access current and projected technologies; extended abstracts. Boulder, CO (USA). 1991. 19-20.}}