@misc{scharf_restoration__1992, 
author={Scharf, B. W., Bernhardt, H., Ehlscheid, T., Luesse, B.},
title={Restoration},
year={1992},
howpublished = {GKSS report},
note = {Scharf, B.; Bernhardt, H.; Ehlscheid, T.; Luesse, B.: Restoration. Archiv fuer Hydrobiologie. 1992. vol. 38, 307-327.}}