@book{33523,
	author = {Carapezza, Edward, ed.},
	title = {Unmanned/Unattended Sensors and Sensor Networks XI; and Advanced Free-Space Optical Communication Techniques and Applications},
	publisher = {SPIE},
	year = {2015},
	series = {Proceedings of SPIE; V. 9647},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9647}
}