@inproceedings{ICPR-v4-2000-WatanabeS,
	author        = "Toyohide Watanabe and Tsuneo Sobue",
	booktitle     = "{Proceedings of the 15th International Conference on Pattern Recognition, Volume 4}",
	doi           = "10.1109/ICPR.2000.10031",
	isbn          = "0-7695-0750-6",
	pages         = "4447--4450",
	publisher     = "{IEEE Computer Society}",
	title         = "{Layout Analysis of Complex Documents}",
	year          = 2000,
}