@book{29828,
	author = {Weiershausen, Werner, ed.},
	title = {Optical Metro Networks and Short-Haul Systems IV},
	publisher = {SPIE},
	year = {2011},
	series = {Proceedings of SPIE; V. 8283},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8283}
}