@misc{kerner_the_effect_1990, 
author={Kerner, M.,Kausch, H.,Miehlich, G.},
title={The effect of tidal action on the transformations of nitrogen in freshwater tidal flat sediments},
year={1990},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Kerner, M.; Kausch, H.; Miehlich, G.: The effect of tidal action on the transformations of nitrogen in freshwater tidal flat sediments. Archiv fuer Hydrobiologie. 1990. vol. 75, no. 2, 251-271.}}