@book{26087,
	author = {Harding, Kevin, ed.},
	title = {ICALEO '89: Optical Sensing and Measurement},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1375},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1375}
}