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Dow Jones unveils knowledge indexing system (1997)
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Feldman, S.E.: Dow Jones News/Retrievals's new software : something for everyone (1996)
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Webber, S.: Search engines and news services : developments on the Internet (1998)
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Chau, M.; Shiu, B.; Chan, M.; Chen, H.: Redips: backlink search and analysis on the Web for business intelligence analysis (2007)
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Northern Light demonstrates Industry Search (1998)
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