@book{29192,
	author = {Cantrell, Cyrus, ed.},
	title = {Nonlinear Optics and Materials},
	publisher = {SPIE},
	year = {1991},
	series = {Proceedings of SPIE; V. 1497},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1497}
}