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- authors%3a%22Becker%2c N.J.%22 2
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Belkin, N.J.; Oddy, R.N.; Brooks, H.M.: Ask for information retrieval : Pt.1: Background and theory; Pt.2: Results of a study (1982)
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Daniels, P.J.; Brooks, H.M.; Belkin, N.J.: Using problem structures for driving human-computer dialogues (1985)
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