@misc{kappenberg_variability_of_2001, 
author={Kappenberg, J., Grabemann, I.},
title={Variability of the mixing zones and estuarine turbidity maxima in the Elbe and Weser estuaries},
year={2001},
howpublished = {journal article},
note = {Kappenberg, J.; Grabemann, I.: Variability of the mixing zones and estuarine turbidity maxima in the Elbe and Weser estuaries. Estuaries. 2001. vol. 24, no. 5, 699-706.}}