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Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
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- Program. 22(1988), S.21-31
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Walker, S.: ¬The Okapi online catalogue research projects (1989)
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Walker, S.: Ease of use in online catalogues : a plea for the user (1986)
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Mitev, N.N.; Walker, S.: Information retrieval aids in an online public access catalogue : automatic intelligent search sequencing (1985)
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- Advances in intelligent retrieval: Proc. of a Conf. ... Wadham College, Oxford, 16.-17.4.1985. Intr.: M. Rowbottom
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Walker, S.: Okapi : Evaluating and enhancing an experimental online catalog (1987)
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Walker, S.: ¬The free language approach to online catalogues (1985)
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Mitev, N.N.; Venner, G.M.; Walker, S.: Designing an online public access catalogue : OKAPI, a catalogue on a local area network (1985)
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