@TechReport{wald:07:TettyTR,
	title	= { {Interactive} {Isosurface} {Ray} {Tracing} {of} {Time-Varying} {Tetrahedral} {Volumes}},
	author	= { Ingo Wald and Heiko Friedrich and Aaron Knoll and Charles D Hansen },
	year	= { 2007 },
	school	= { {SCI} {Institute,} {University} {of} {Utah} },
	number	= { {UUSCI-2007-003} },
	note	= { An extended version of this Article got published via TVCG/Vis2007 }
}