@book{25346,
	author = {Greenwell, Roger, ed.},
	title = {Fiber Optics in Adverse Environments III},
	publisher = {SPIE},
	year = {1987},
	series = {Proceedings of SPIE; V. 0721},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/0721}
}