@misc{ansmann_measurements_with_1990, 
author={Ansmann, A.},
title={Measurements with lidars during ICE 89: results of the experimental investigations},
year={1990},
howpublished = {conference lecture: Villeneuve d'Ascq (F);},
note = {Ansmann, A.: Measurements with lidars during ICE 89: results of the experimental investigations. International Cirrus Experiment Third Workshop. Villeneuve d'Ascq (F), 1990.}}