@inproceedings{ICPR-2008-KobayashiO,
	author        = "Takumi Kobayashi and Nobuyuki Otsu",
	booktitle     = "{Proceedings of the 19th International Conference on Pattern Recognition}",
	doi           = "10.1109/ICPR.2008.4761097",
	isbn          = "978-1-4244-2175-6",
	pages         = "1--4",
	publisher     = "{IEEE Computer Society}",
	title         = "{Cone-restricted subspace methods}",
	year          = 2008,
}