@book{30854,
	author = {Kalli, Kyriacos, ed.},
	title = {Photonic Crystal Fibers II},
	publisher = {SPIE},
	year = {2008},
	series = {Proceedings of SPIE; V. 6990},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6990}
}