@inproceedings{CHI-2002-PiperRI,
	author        = "Ben Piper and Carlo Ratti and Hiroshi Ishii",
	booktitle     = "{Proceedings of the 20th ACM SIGCHI Conference on Human Factors in Computing Systems: Changing our World, Changing ourselves}",
	doi           = "10.1145/503376.503439",
	isbn          = "1-58113-453-3",
	pages         = "355--362",
	publisher     = "{ACM}",
	title         = "{Illuminating clay: a 3-D tangible interface for landscape analysis}",
	year          = 2002,
}