@InProceedings{knolla:07:Implicits,
	title	= { {Interactive} {Ray} {Tracing} {of} {Arbitrary} {Implicit} {Functions}},
	author	= { Aaron Knoll and Younis Hijazi and Charles D Hansen and Ingo Wald and Hans Hagen },
	year	= { 2007 },
	booktitle	= { {Proceedings} {of} {the} {2007} {Eurographics/IEEE} {Symposium} {on} {Interactive} {Ray} {Tracing} }
}