@inproceedings{TPDL-2015-BeelL,
	author        = "Jöran Beel and Stefan Langer",
	booktitle     = "{Proceedings of the 19th International Conference on Theory and Practice of Digital Libraries}",
	doi           = "10.1007/978-3-319-24592-8_12",
	isbn          = "978-3-319-24591-1",
	pages         = "153--168",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A Comparison of Offline Evaluations, Online Evaluations, and User Studies in the Context of Research-Paper Recommender Systems}",
	volume        = 9316,
	year          = 2015,
}