@book{33507,
	author = {Karlsen, Robert, ed.},
	title = {Unmanned Systems Technology XVI},
	publisher = {SPIE},
	year = {2014},
	series = {Proceedings of SPIE; V. 9084},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9084}
}