@misc{macke_spectral_variability_1991, 
author={Macke, A.,Raschke, E.},
title={Spectral variability of light scattering by hexagonal ice crystals},
year={1991},
howpublished = {conference paper,conference lecture: Florence (I); August 27-30, 1991},
note = {Online available at: \url{} (DOI). Macke, A.; Raschke, E.: Spectral variability of light scattering by hexagonal ice crystals. In: ICO (International Commission for Optics) Topical Meeting on Atmospheric, Volume and Surface Scattering and Propagation. Florence (I). 1991. 393-396.}}