@inproceedings{ICDAR-1993-YamamotoYM,
	author        = "Kazuhiko Yamamoto and Hiromitsu Yamada and Shigeru Muraki",
	booktitle     = "{Proceedings of the Second International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1993.395588",
	isbn          = "0-8186-4960-7",
	pages         = "914--917",
	publisher     = "{IEEE}",
	title         = "{Symbol recognition and surface reconstruction from topographic map by parallel method}",
	year          = 1993,
}