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Berinstein, P.: Turning visual : image search engines on the Web (1998)
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Amato, G.; Rabitti, F.; Savino, P.: Multimedia document search on the Web (1998)
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Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
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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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Bryan, K.; Leise, T.: ¬The $25.000.000.000 eigenvector : the linear algebra behind Google
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Hsieh-Yee, I.: ¬The retrieval power of selected search engines : how well do they address general reference questions and subject questions? (1998)
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Hancock, B.: Subject-specific search engines : using the Harvest system to gather and maintain information on the Internet (1998)
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Kurzke, C.; Galle, M.; Bathelt, M.: WebAssistant : a user profile specific information retrieval assistant (1998)
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Wiley, D.L.: Beyond information retrieval : ways to provide content in context (1998)
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Heery, R.: Information gateways : collaboration and content (2000)
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Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000)
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Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
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