@book{25805,
	author = {Lewandowski, Ronald, ed.},
	title = {Helmet- and Head-Mounted Displays VI},
	publisher = {SPIE},
	year = {2001},
	series = {Proceedings of SPIE; V. 4361},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4361}
}