@misc{doerffer_retrieval_of_1990, 
author={Doerffer, R.,Fischer, J.},
title={Retrieval of chlorophyll, suspended matter and gelbstoff from CZCS data},
year={1990},
howpublished = {conference lecture: Venice (I); 21.-25.05.1990},
note = {Online available at: \url{} (DOI). Doerffer, R.; Fischer, J.: Retrieval of chlorophyll, suspended matter and gelbstoff from CZCS data. International Conference Oceanography from Space. Venice (I), 1990.}}