@book{30225,
	author = {Grosmann, Michel, ed.},
	title = {Optics and Photonics Applied to Communication and Processing},
	publisher = {SPIE},
	year = {1980},
	series = {Proceedings of SPIE; V. 0213},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0213}
}