@book{30150,
	author = {Weiershausen, Werner, ed.},
	title = {Optical Transmission Systems and Equipment for Networking VI},
	publisher = {SPIE},
	year = {2007},
	series = {Proceedings of SPIE; V. 6774},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6774}
}