@book{32618,
	author = {Mackenzie, John, ed.},
	title = {Sol-Gel Optics},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1328},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1328}
}