@inproceedings {4143,
	title = {The Effect of Document Retrieval Quality on Factoid Question Answering Performance},
	booktitle = {International Conference on Research and Development in Information Retrieval (SIGIR)},
	year = {2004},
	doi = {10.1145/1008992.1009127},
	author = {Kevyn Collins-Thompson and Jamie Callan and Egidio L. Terra and Charles Clarke}
}
