@inproceedings{SIGIR-2011-TrotmanK,
	author        = "Andrew Trotman and David Keeler",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2010066",
	isbn          = "978-1-4503-0757-4",
	pages         = "1095--1096",
	publisher     = "{ACM}",
	title         = "{Ad hoc IR: not much room for improvement}",
	year          = 2011,
}