@book{30800,
	author = {Arecchi, Angelo, ed.},
	title = {Photometric Engineering of Sources and Systems},
	publisher = {SPIE},
	year = {1997},
	series = {Proceedings of SPIE; V. 3140},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3140}
}