@book{27618,
	author = {Wójcik, Jan, ed.},
	title = {Lightguides and their Applications II},
	publisher = {SPIE},
	year = {2004},
	series = {Proceedings of SPIE; V. 5576},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5576}
}