@book{22906,
	author = {Roper, V., ed.},
	title = {Active Infrared Systems and Technology},
	publisher = {SPIE},
	year = {1987},
	series = {Proceedings of SPIE; V. 0806},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0806}
}