@misc{hargens_microwave_remote_1990, 
author={Hargens, U.,Simmer, C.,Ruprecht, E.},
title={Microwave remote sensing of cloud liquid water during ICE 89},
year={1990},
howpublished = {conference lecture: Lille (F); 03.12.1990},
note = {Online available at: \url{} (DOI). Hargens, U.; Simmer, C.; Ruprecht, E.: Microwave remote sensing of cloud liquid water during ICE 89. Workshop zum Internationalen Cirrus Experiment. Lille (F), 1990.}}