@inproceedings{SIGIR-2003-HuBZ,
	author        = "Xiao Hu and Sindhura Bandhakavi and ChengXiang Zhai",
	booktitle     = "{Proceedings of the 26th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/860435.860524",
	isbn          = "1-58113-646-3",
	pages         = "407--408",
	publisher     = "{ACM}",
	title         = "{Error analysis of difficult TREC topics}",
	year          = 2003,
}