@misc{kerner_seasonal_variation_1990, 
author={Kerner, M.},
title={Seasonal variation in the structure of the microbial community capable of nitrate respiration in an intertidal mud flat sediment from the Elbe-Estuary},
year={1990},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Kerner, M.: Seasonal variation in the structure of the microbial community capable of nitrate respiration in an intertidal mud flat sediment from the Elbe-Estuary. Archiv fuer Hydrobiologie. 1990. vol. 75, no. 2, 273-280.}}