@book{24444,
	author = {Johnson, R. Barry, ed.},
	title = {Current Developments in Lens Design and Optical Engineering XIII},
	publisher = {SPIE},
	year = {2012},
	series = {Proceedings of SPIE; V. 8486},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8486}
}