@inproceedings{ICDAR-1993-AmamotoTH,
	author        = "Naohiro Amamoto and Shin Torigoe and Yoshitaka Hirogaki",
	booktitle     = "{Proceedings of the Second International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1993.395631",
	isbn          = "0-8186-4960-7",
	pages         = "739--742",
	publisher     = "{IEEE}",
	title         = "{Block segmentation and text area extraction of vertically/horizontally written document}",
	year          = 1993,
}