@inproceedings{ECIR-2011-LipkaS,
	author        = "Nedim Lipka and Benno Stein",
	booktitle     = "{Proceedings of the 33rd European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-642-20161-5_31",
	isbn          = "978-3-642-20160-8",
	pages         = "307--313",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Classifying with Co-stems — A New Representation for Information Filtering}",
	volume        = 6611,
	year          = 2011,
}