@inproceedings{ICPR-2012-HeCS,
	author        = "Lifeng He and Yuyan Chao and Kenji Suzuki",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "3099--3102",
	publisher     = "{IEEE Computer Society}",
	title         = "{A new algorithm for labeling connected-components and calculating the Euler number, connected-component number, and hole number}",
	year          = 2012,
}