@inproceedings{ICDAR-1997-Ah-SoonT,
	author        = "Christian Ah-Soon and Karl Tombre",
	booktitle     = "{Proceedings of the Fourth International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1997.619869",
	isbn          = "0-8186-7898-4",
	pages         = "347--351",
	publisher     = "{IEEE Computer Society}",
	title         = "{Variations on the Analysis of Architectural Drawing}",
	year          = 1997,
}