@inproceedings{ICPR-v1-2002-BingPL,
	author        = "Yu Bing and Chen Ping and Jin Lianfu",
	booktitle     = "{Proceedings of the 16th International Conference on Pattern Recognition, Volume 1}",
	doi           = "10.1109/ICPR.2002.1044632",
	isbn          = "0-7695-1695-5",
	pages         = "139--142",
	publisher     = "{IEEE Computer Society}",
	title         = "{Recognizing Faces with Expressions: Within-class Space and Between-class Space}",
	year          = 2002,
}