@misc{levkov_impact_of_1995, 
author={Levkov, L., Boin, M., Rockel, B.},
title={Impact of primary ice nucleation parameterizations on the formation and maintenance of cirrus},
year={1995},
howpublished = {journal article},
note = {Levkov, L.; Boin, M.; Rockel, B.: Impact of primary ice nucleation parameterizations on the formation and maintenance of cirrus. Atmospheric Research. 1995. vol. 38, 147-159.}}