@inproceedings{CHI-2006-WangWDW,
	author        = "Weixin Wang and Henry (Hui) Wang and Guozhong Dai and Hongan Wang",
	booktitle     = "{Proceedings of the 24th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1124772.1124851",
	isbn          = "1-59593-372-7",
	pages         = "517--520",
	publisher     = "{ACM}",
	title         = "{Visualization of large hierarchical data by circle packing}",
	year          = 2006,
}