@inproceedings{RecSys-2009-SemeraroLBG,
	author        = "Giovanni Semeraro and Pasquale Lops and Pierpaolo Basile and Marco de Gemmis",
	booktitle     = "{Proceedings of the Third Conference on Recommender Systems}",
	doi           = "10.1145/1639714.1639773",
	isbn          = "978-1-60558-435-5",
	pages         = "301--304",
	publisher     = "{ACM}",
	title         = "{Knowledge infusion into content-based recommender systems}",
	year          = 2009,
}