@Article{wald:06:Grid,
	title	= { {Ray} {Tracing} {Animated} {Scenes} {using} {Coherent} {Grid} {Traversal}},
	author	= { Ingo Wald and Thiago Ize and Andrew Kensler and Aaron Knoll and Steven G Parker },
	year	= { 2006 },
	pages	= { 485--493 },
	journal	= { ACM Transactions on Graphics },
	note	= { (Proceedings of ACM SIGGRAPH 2006) }
}