@book{24231,
	author = {Steele, Roger, ed.},
	title = {Coherent Lightwave Communications: Fourth in a Series},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1175},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1175}
}