@misc{levkov_3d_numerical_1992, 
author={Levkov, L., Rockel, B., Raschke, E.},
title={3-D numerical simulation of cirrus clouds},
year={1992},
howpublished = {conference lecture: Montreal (CDN);},
note = {Levkov, L.; Rockel, B.; Raschke, E.: 3-D numerical simulation of cirrus clouds. In: International Commission on Clouds and Precipitation (Ed.): 11th International Conference on Clouds and Precipitation. Montreal (CDN). 1992. 514-517.}}