@inproceedings{RecSys-2012-Lempel,
	author        = "Ronny Lempel",
	booktitle     = "{Proceedings of the Sixth Conference on Recommender Systems}",
	doi           = "10.1145/2365952.2365992",
	isbn          = "978-1-4503-1270-7",
	pages         = "205--206",
	publisher     = "{ACM}",
	title         = "{Recommendation challenges in web media settings}",
	year          = 2012,
}