@conference {halsema1989b,
	title = {Comparisons of X-band Radar Backscatter Measurements with Area extended wave slop measurements made in a large Wind/Wave Tank},
	booktitle = {Proc. IGARSS{\textquoteright}89},
	volume = {5},
	year = {1989},
	pages = {2997--3001},
	doi = {10.1109/IGARSS.1989.575986},
	author = {van Halsema, D. and C. J. Calkoen and W. A. Oost and P. Snoeij and Bernd J{\"a}hne}
}
