@misc{niedergesaess_variations_of_1996, 
author={Niedergesaess, R.,Prange, A.,Schnier, C.},
title={Variations of trace element content in suspended particulate matter in the Elbe estuary},
year={1996},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Niedergesaess, R.; Prange, A.; Schnier, C.: Variations of trace element content in suspended particulate matter in the Elbe estuary. Archiv fuer Hydrobiologie. 1996. vol. 47, 235-246.}}