@inproceedings {4092,
	title = {ClueWeb09 and TREC Diversity},
	booktitle = {Conference on Evaluation of Information Access Technologies (NTCIR)},
	year = {2010},
	url = {http://research.nii.ac.jp/ntcir/workshop/OnlineProceedings8/NTCIR/03-NTCIR8-INV-ClarkeC.pdf},
	author = {Charles Clarke}
}
