@article {Witkin-1988-SCO,
	author=		"Andrew Witkin and Michael Kass",
	journal=	"Computer Graphics",
	month=		"August",
	number=		"4",
	pages=		"159--168",
	publisher=	"ACM Press",
	title=		"Spacetime Constraints",
	volume=		"22",
	year=		"1988",
	theme=		"tech and vr and perception and natural and medicine and art",
	project=	"genetic",
	added-by=	"Daniel Acevedo",
	date-added=	"Thu June 27 12:45:17 2002"
}
@article {Witkin-1988-SCO-url,
	author=		"Andrew Witkin and Michael Kass",
	journal=	"Computer Graphics",
	month=		"August",
	note=		" \url{http://vis.cs.brown.edu/docs/pdf/bib/g/Witkin-1988-SCO.pdf.html}{(pdf)} \url{http://vis.cs.brown.edu/results/bibtex/Witkin-1988-SCO.bib}{(bibtex: Witkin-1988-SCO)}",
	number=		"4",
	pages=		"159--168",
	publisher=	"ACM Press",
	title=		"Spacetime Constraints",
	volume=		"22",
	year=		"1988",
	theme=		"tech and vr and perception and natural and medicine and art",
	project=	"genetic",
	added-by=	"Daniel Acevedo",
	date-added=	"Thu June 27 12:45:17 2002"
}