@inproceedings{RecSys-2008-WuWC,
	author        = "Hu Wu and Yongji Wang and Xiang Cheng",
	booktitle     = "{Proceedings of the Second Conference on Recommender Systems}",
	doi           = "10.1145/1454008.1454026",
	isbn          = "978-1-60558-093-7",
	pages         = "99--106",
	publisher     = "{ACM}",
	title         = "{Incremental probabilistic latent semantic analysis for automatic question recommendation}",
	year          = 2008,
}