@misc{ziemer_directional_spectra_1989, 
author={Ziemer, F.},
title={Directional spectra from shipboard navigation radar during LEWEX},
year={1989},
howpublished = {conference lecture: Baltimore, MD (USA);},
note = {Ziemer, F.: Directional spectra from shipboard navigation radar during LEWEX. In: Beal, R. (Ed.): Directional Ocean Wave Spectra. Baltimore, MD (USA). 1989. 80-85.}}