@book{29744,
	author = {Granqvist, Claes-Göran, ed.},
	title = {Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 1272},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1272}
}