@misc{boin_some_effects_1993, 
author={Boin, M.,Levkov, L.},
title={Some effects of ice nucleation modes on the development of contrails},
year={1993},
howpublished = {conference paper,conference lecture: Wiesbaden (D); 03.-07.05.1993},
note = {Online available at: \url{} (DOI). Boin, M.; Levkov, L.: Some effects of ice nucleation modes on the development of contrails. In: XVIII General Assembly of the European Geophysical Society. Wiesbaden (D). 1993. C 193.}}