@inproceedings{ICDAR-1997-HoriuchiHYY,
	author        = "Takahiko Horiuchi and Ryoji Haruki and Hiromitsu Yamada and Kazuhiko Yamamoto",
	booktitle     = "{Proceedings of the Fourth International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1997.620551",
	isbn          = "0-8186-7898-4",
	pages         = "511--514",
	publisher     = "{IEEE Computer Society}",
	title         = "{Two-dimensional Extension of Nonlinear Normalization Method using Line Density for Character Recognition}",
	year          = 1997,
}