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Chu, H.; Rosenthal, M.: Search engines for the World Wide Web : a comparative study and evaluation methodology (1996)
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Feldman, S.: "Just the answer, please" : choosing a Web search service (1997)
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Lin, Z.; Baoming, Z.: Comparative study of WWW search tools (1998)
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Feldman, S.: Web search services in 1998 : trends and challenges (1998)
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Internet search tool details (1996)
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