@Article{wald:06:IT,
	title	= { {Realtime} {Ray} {Tracing} {and} {Interactive} {Global} {Illumination}},
	author	= { Ingo Wald },
	year	= { 2006 },
	journal	= { IT - Information Technology },
	number	= { 4 },
	note	= { (invited article, in german) }
}