@book{31092,
	author = {Neurgaonkar, Ratnakar, ed.},
	title = {Photorefractive Materials},
	publisher = {SPIE},
	year = {1996},
	series = {Proceedings of SPIE; V. 2896},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/2896}
}