@misc{heyen_salinity_variability_1998, 
author={Heyen, H., Dippner, J. W.},
title={Salinity variability in the German Bight in relation to climate variability},
year={1998},
howpublished = {GKSS report},
note = {Heyen, H.; Dippner, J.: Salinity variability in the German Bight in relation to climate variability. Tellus  A. 1998. vol. 50, 545-556.}}