@inproceedings{SIGIR-2009-ArmstrongMWZ,
	author        = "Timothy G. Armstrong and Alistair Moffat and William Webber and Justin Zobel",
	booktitle     = "{Proceedings of the 32nd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1571941.1572081",
	isbn          = "978-1-60558-483-6",
	pages         = "692--693",
	publisher     = "{ACM}",
	title         = "{Has adhoc retrieval improved since 1994?}",
	year          = 2009,
}