@book{33819,
	author = {Christopher, Paul, ed.},
	title = {Wireless Technologies and Systems: Millimeter-Wave and Optical},
	publisher = {SPIE},
	year = {1998},
	series = {Proceedings of SPIE; V. 3232},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3232}
}