@inproceedings{CIKM-2012-NguyenCH,
	author        = "Tam T. Nguyen and Kuiyu Chang and Siu Cheung Hui",
	booktitle     = "{Proceedings of the 21st ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2396761.2396854",
	isbn          = "978-1-4503-1156-4",
	pages         = "724--733",
	publisher     = "{ACM}",
	title         = "{A math-aware search engine for math question answering system}",
	year          = 2012,
}