@inproceedings {4117,
	title = {Comparing Query Logs and Pseudo-Relevance Feedbackfor Web-Search Query Refinement},
	booktitle = {International Conference on Research and Development in Information Retrieval (SIGIR)},
	year = {2007},
	doi = {10.1145/1277741.1277931},
	author = {Ryen W. White and Charles Clarke and Silviu Cucerzan}
}
