@book{25815,
	author = {Symko-Davies, Martha, ed.},
	title = {High and Low Concentration for Solar Electric Applications II},
	publisher = {SPIE},
	year = {2007},
	series = {Proceedings of SPIE; V. 6649},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6649}
}