@misc{guenther_the_third_1990, 
author={Guenther, H.},
title={The third generation wave model at ECMWF},
year={1990},
howpublished = {conference lecture: Kopenhagen (DK);},
note = {Guenther, H.: The third generation wave model at ECMWF. XV General Assembly of the European Geophysical Society. Kopenhagen (DK), 1990.}}