@misc{macke_study_on_1994, 
author={Macke, A.,Dlhopolsky, R.,Mueller, J.,Stuhlmann, R.,Raschke, E.},
title={Study on bidirectional reflection functions for broken cloud fields over oceans},
year={1994},
howpublished = {conference lecture: Hamburg (D); July 11-21, 1994},
note = {Online available at: \url{} (DOI). Macke, A.; Dlhopolsky, R.; Mueller, J.; Stuhlmann, R.; Raschke, E.: Study on bidirectional reflection functions for broken cloud fields over oceans. 3th COSPAR Scientific Assembly. Hamburg (D), 1994.}}