@book{25538,
	author = {Hemmati, Hamid, ed.},
	title = {Free-Space Laser Communication Technologies XXI},
	publisher = {SPIE},
	year = {2009},
	series = {Proceedings of SPIE; V. 7199},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7199}
}