@inproceedings{ICPR-2012-PiroSM,
	author        = "Paolo Piro and Diego Sona and Vittorio Murino",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "429--432",
	publisher     = "{IEEE Computer Society}",
	title         = "{Inner product tree for improved Orthogonal Matching Pursuit}",
	year          = 2012,
}