@misc{fischer_sunstimulated_chlorophyll_1991, 
author={Fischer, J., Kronfeld, U.},
title={Sun-stimulated chlorophyll flourescence - 1: Influence of oceanic properties},
year={1991},
howpublished = {GKSS report},
note = {Fischer, J.; Kronfeld, U.: Sun-stimulated chlorophyll flourescence - 1: Influence of oceanic properties. International Journal of Remote Sensing. 1991. vol. 11, no. 12, 2125-2147.}}