@book{24339,
	author = {Kopera, Paul, ed.},
	title = {Components for Fiber Optic Applications IV},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1176},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1176}
}