@book{30079,
	author = {Cielo, Paolo, ed.},
	title = {Optical Techniques for Industrial Inspection},
	publisher = {SPIE},
	year = {1986},
	series = {Proceedings of SPIE; V. 0665},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0665}
}