@misc{rosenthal_removal_of_1991, 
author={Rosenthal, W.,Ziemer, F.},
title={Removal of 180° ambiguity in SAR images of ocean waves},
year={1991},
howpublished = {book part,GKSS report},
note = {Online available at: \url{} (DOI). Rosenthal, W.; Ziemer, F.: Removal of 180° ambiguity in SAR images of ocean waves. In: Beal, R. (Ed.): Directional ocean wave spectra. Baltimore: John Hopkins University Press. 1991. 125-127.}}