@inproceedings{DRR-2014-GaoRKL,
	author        = "Hongxing Gao and Marçal Rusiñol and Dimosthenis Karatzas and Josep Lladós",
	booktitle     = "{Proceedings of the 21st Conference on Document Recognition and Retrieval}",
	doi           = "10.1117/12.2042458",
	pages         = "None--10",
	publisher     = "{SPIE}",
	series        = "{SPIE Proceedings}",
	title         = "{Fast structural matching for document image retrieval through spatial databases}",
	volume        = 9021,
	year          = 2014,
}