@misc{scharf_summary_of_1992, 
author={Scharf, B. W., Ehlscheid, T.},
title={Summary of paleolimnological investigations with special reference to Late Quaternary trophic variations},
year={1992},
howpublished = {GKSS report},
note = {Scharf, B.; Ehlscheid, T.: Summary of paleolimnological investigations with special reference to Late Quaternary trophic variations. Archiv fuer Hydrobiologie. 1992. vol. 38, 33-41.}}