@inproceedings{ICDAR-2009-NguyenTB,
	author        = "Thi-Oanh Nguyen and Salvatore Tabbone and Alain Boucher",
	booktitle     = "{Proceedings of the 10th International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.2009.207",
	isbn          = "978-0-7695-3725-2",
	pages         = "708--712",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Symbol Spotting Approach Based on the Vector Model and a Visual Vocabulary}",
	year          = 2009,
}