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Leighton, H.V.: Performance of four World Wide Web (WWW) index services : Infoseek, Lycos, WebCrawler and WWWWorm (1995)
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Leighton, H.V.; Srivastava, J.: First 20 precision among World Wide Web search services (search engines) (1999)
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- Source
- Journal of the American Society for Information Science. 50(1999) no.10, S.870-881