@misc{doerffer_small_scale_1989, 
author={Doerffer, R.,Fischer, J.,Grassl, H.,Stoessel, M.,Brockmann, C.},
title={Small scale patches of suspended matter and phytoplankton in the Elbe river estuary: German bight and tidal flats},
year={1989},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Doerffer, R.; Fischer, J.; Grassl, H.; Stoessel, M.; Brockmann, C.: Small scale patches of suspended matter and phytoplankton in the Elbe river estuary: German bight and tidal flats. Advances in Space Research. 1989. vol. 9, no. 1, 191-200.}}