@article  {Levoy-1990-ERO,
	author=		"M. Levoy  ",
	journal=	"ACM Transactions of Computer Graphics",
	number=		"3 ",
	pages=		"245--261 ",
	title=		"Efficient ray tracing of volume data ",
	volume=		"9   ",
	year=		"1990 ",
	theme=		"tech and medicine and art",
	project=	"wrist",
	added-by=	"Cagatay Demiralp",
	date-added=	"Wed Nov  6 13:54:04 EST 2002"
}
@article  {Levoy-1990-ERO-url,
	author=		"M. Levoy  ",
	journal=	"ACM Transactions of Computer Graphics",
	note=		" \url{http://vis.cs.brown.edu/results/bibtex/Levoy-1990-ERO.bib}{(bibtex: Levoy-1990-ERO)}",
	number=		"3 ",
	pages=		"245--261 ",
	title=		"Efficient ray tracing of volume data ",
	volume=		"9   ",
	year=		"1990 ",
	theme=		"tech and medicine and art",
	project=	"wrist",
	added-by=	"Cagatay Demiralp",
	date-added=	"Wed Nov  6 13:54:04 EST 2002"
}