@book{24393,
	author = {Beckmann, Leo, ed.},
	title = {Contemporary Optical Instrument Design, Fabrication, and Testing},
	publisher = {SPIE},
	year = {1986},
	series = {Proceedings of SPIE; V. 0656},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0656}
}