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Duval, B.K.; Main, L.: Searching on the Net : general overview (1996)
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Notess, G.R.: Toward more comprehensive Web searching : single searching versus megasearching (1998)
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Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000)
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Campbell, D.: Australian subject gateways : political and strategic issues (2000)
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Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000)
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Sandler, M.: Disruptive beneficence : the Google Print program and the future of libraries (2005)
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Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013)
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Bell, G.; Poynder, R.: Exciting times for search engines (1996)
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Seltzer, R.; Ray, D.S.; Ray, E.J.: ¬The AltaVista search revolution : how to find anything on the Internet (1997)
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Cree, J.S.; LeBruin, R.: ¬The search for the best engine (1998)
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