@inproceedings {4121,
	title = {A Document-Centric Approach to Static Index Pruning in Text Retrieval Systems},
	booktitle = {International Conference on Information and Knowledge Management (CIKM)},
	year = {2006},
	doi = {10.1145/1183614.1183644},
	author = {Stefan B{\"u}ttcher and Charles Clarke}
}
