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Mayes, T.: Hypermedia and cognitive tools (1995)
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Dumais, S.T.: Latent semantic analysis (2003)
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Yang, Y.; Wilbur, J.: Using corpus statistics to remove redundant words in text categorization (1996)
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Jorgensen, C.: Indexing images : testing an image description template (1996)
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Becker, D.A.; Dwyer, M.M.: Using hypermedia to provide learner control (1994)
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