@inproceedings{CIKM-2009-XiongLZLFZZ,
	author        = "Yuhong Xiong and Ping Luo and Yong Zhao and Fen Lin and Shicong Feng and Baoyao Zhou and Liwei Zheng",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646310",
	isbn          = "978-1-60558-512-3",
	pages         = "2077--2078",
	publisher     = "{ACM}",
	title         = "{OfCourse: web content discovery, classification and information extraction for online course materials}",
	year          = 2009,
}