@misc{scharf_hydrology_and_1992, 
author={Scharf, B. W., Menn, U.},
title={Hydrology and morphometry},
year={1992},
howpublished = {GKSS report},
note = {Scharf, B.; Menn, U.: Hydrology and morphometry. Archiv fuer Hydrobiologie. 1992. vol. 38, 43-62.}}