@inproceedings{ECIR-2017-RoiteroMM,
	author        = "Kevin Roitero and Eddy Maddalena and Stefano Mizzaro",
	booktitle     = "{Proceedings of the 39th European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-319-56608-5_55",
	isbn          = "['978-3-319-56607-8', '978-3-319-56608-5']",
	pages         = "605--611",
	title         = "{Do Easy Topics Predict Effectiveness Better Than Difficult Topics?}",
	year          = 2017,
}