@inproceedings{SIGIR-2014-GoeuriotKL,
	author        = "Lorraine Goeuriot and Liadh Kelly and Johannes Leveling",
	booktitle     = "{Proceedings of the 37th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2600428.2609496",
	isbn          = "978-1-4503-2257-7",
	pages         = "1007--1010",
	publisher     = "{ACM}",
	title         = "{An analysis of query difficulty for information retrieval in the medical domain}",
	year          = 2014,
}