@book{30336,
	author = {Freeman, Charles, ed.},
	title = {Optics in Security and Law Enforcement I},
	publisher = {SPIE},
	year = {1977},
	series = {Proceedings of SPIE; V. 0108},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0108}
}