@article {3510,
	title = {Passage-Based Query Refinement (MultiText Experiments for TREC-6)},
	journal = {Information Processing and Management},
	volume = {36},
	year = {2000},
	pages = {133--153},
	doi = {10.1016/S0306-4573(99)00048-5},
	author = {Gordon Cormack and Charles Clarke and Christopher R. Palmer and Samuel S. L. To}
}
