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Spink, A.; Jansen, B.J.; Blakely, C.; Koshman, S.: ¬A study of results overlap and uniqueness among major Web search engines (2006)
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Howe, A.E.; Dreilinger, D.: SavvySearch: a metasearch engine that learns with search engines to query (1997)
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Falk, H.: World Wide Web search and retrieval (1997)
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Jansen, B.J.; Spink, A.; Koshman, S.: Web searcher interaction with the Dogpile.com metasearch engine (2007)
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Tjondronegoro, D.; Spink, A.: Web search engine multimedia functionality (2008)
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