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Liu, H.-M.C.: Selection and comparison of WWW search tools (1996)
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Raisch, M.J.: ¬The wide world of the World-Wide Web : A description of Web browsers and search engines (1996)
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Notess, G.R.: Measuring the size of Internet databases (1997)
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Courlois, M.P.: Cool tools for Web searching : an update (1996)
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Watson, I.: Searching the WWW : a quick comparison of Infoseek, Lycos, Yahoo, InfoMarket and Webcrawler (1996)
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