@misc{riethmueller_potentials_and_1999, 
author={Riethmueller, R., Heineke, M., Kuehl, H., Keuker-Ruediger, R.},
title={Potentials and limitations of chlorophyll a concentration as an index of sediment surface stabilisation},
year={1999},
howpublished = {GKSS report},
note = {Riethmueller, R.; Heineke, M.; Kuehl, H.; Keuker-Ruediger, R.: Potentials and limitations of chlorophyll a concentration as an index of sediment surface stabilisation. GKSS 99-E-35. 1999.}}