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Hock, R.: ¬A new era of search engines : not just Web pages anymore (2002)
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- Online. 26(2002) no.5, S.20-27
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Hock, R.: ¬The latest field trip : an update on field searching in Web search engines (2004)
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- Online. 28(2004) no.5, S.15-
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Hock, R.: Web search engines : more features and commands (2000)
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- Online. 24(2000) no.3, S.17-26