@misc{ziemer_an_instrument_1995, 
author={Ziemer, F.},
title={An instrument for the survey of the directionality of the ocean wave field},
year={1995},
howpublished = {conference lecture: Geneva (CH);},
note = {Ziemer, F.: An instrument for the survey of the directionality of the ocean wave field. In: Marine Meteorology and Related Oceanographic Activities, Report No. 32; Proceedings of the WMO/IOC Workshop on Operational Ocean Monitoring Using Surface Based Radars. Geneva (CH). 1995. 81-87.}}