@inproceedings{ICDAR-2009-XuSGN,
	author        = "Jian-Wu Xu and Vartika Singh and Venu Govindaraju and Depankar Neogi",
	booktitle     = "{Proceedings of the 10th International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.2009.187",
	isbn          = "978-0-7695-3725-2",
	pages         = "486--490",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Hierarchical Classification Model for Document Categorization}",
	year          = 2009,
}