@book{26940,
	author = {Gregory, G. Groot, ed.},
	title = {International Optical Design Conference 2006},
	publisher = {SPIE},
	year = {2006},
	series = {Proceedings of SPIE; V. 6342},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6342}
}