@inproceedings{CIKM-2012-WeningerBH,
	author        = "Tim Weninger and Yonatan Bisk and Jiawei Han",
	booktitle     = "{Proceedings of the 21st ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2396761.2396843",
	isbn          = "978-1-4503-1156-4",
	pages         = "635--644",
	publisher     = "{ACM}",
	title         = "{Document-topic hierarchies from document graphs}",
	year          = 2012,
}