@book{24448,
	author = {Johnson, R. Barry, ed.},
	title = {Current Developments in Lens Design and Optical Engineering XVI},
	publisher = {SPIE},
	year = {2015},
	series = {Proceedings of SPIE; V. 9578},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9578}
}