@misc{levkov_an_ice_1992, 
author={Levkov, L., Rockel, B.},
title={An ice cristal nucleation scheme applying by 3-D simulation of cirrus clouds},
year={1992},
howpublished = {conference lecture: Salt Lake City, UT (USA);},
note = {Levkov, L.; Rockel, B.: An ice cristal nucleation scheme applying by 3-D simulation of cirrus clouds. In: Fukuta, N.; Wagner, P. (Ed.): Proceedings of the Thirteen International Conference on Nucleation and Atmospheric Aerosols. Salt Lake City, UT (USA). 1992. 237-240.}}