@book{25777,
	author = {Lewandowski, Ronald, ed.},
	title = {Head-Mounted Displays II},
	publisher = {SPIE},
	year = {1997},
	series = {Proceedings of SPIE; V. 3058},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3058}
}