@inproceedings{RecSys-2011-Steck,
	author        = "Harald Steck",
	booktitle     = "{Proceedings of the Fifth Conference on Recommender Systems}",
	doi           = "10.1145/2043932.2043957",
	isbn          = "978-1-4503-0683-6",
	pages         = "125--132",
	publisher     = "{ACM}",
	title         = "{Item popularity and recommendation accuracy}",
	year          = 2011,
}