@book{31072,
	author = {Turner, Eugene, ed.},
	title = {Photo-Optical Instrumentation: Present & Future Developments},
	publisher = {SPIE},
	year = {1970},
	series = {Proceedings of SPIE; V. 0022},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0022}
}