@book{26739,
	author = {Casasent, David, ed.},
	title = {Intelligent Robots and Computer Vision IX: Algorithms and Techniques},
	publisher = {SPIE},
	year = {1991},
	series = {Proceedings of SPIE; V. 1381},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1381}
}