@book{31971,
	author = {Ardeberg, Arne, ed.},
	title = {Second Backaskog Workshop on Extremely Large Telescopes},
	publisher = {SPIE},
	year = {2004},
	series = {Proceedings of SPIE; V. 5382},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5382}
}