@article {Whitted-1980-AII,
	author=		"Turner Whitted ",
	journal=	"Communications of the ACM ",
	month=		"June ",
	number=		"6 ",
	pages=		"343--349",
	title=		"An improved illumination model for shaded display ",
	volume=		"23  ",
	year=		"1980 ",
	theme=		"tech and medicine and art",
	project=	"wrist",
	added-by=	"Cagatay Demiralp",
	date-added=	"Wed Nov  6 17:29:23 EST 2002"
}
@article {Whitted-1980-AII-url,
	author=		"Turner Whitted ",
	journal=	"Communications of the ACM ",
	month=		"June ",
	note=		" \url{http://www.cs.brown.edu/research/vis/results/bibtex/Whitted-1980-AII.bib}{(bibtex: Whitted-1980-AII)}",
	number=		"6 ",
	pages=		"343--349",
	title=		"An improved illumination model for shaded display ",
	volume=		"23  ",
	year=		"1980 ",
	theme=		"tech and medicine and art",
	project=	"wrist",
	added-by=	"Cagatay Demiralp",
	date-added=	"Wed Nov  6 17:29:23 EST 2002"
}