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  1. Walker, S.: ¬The Okapi online catalogue research projects (1989) 8.40
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    Author
    Walker, S.
  2. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 8.40
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    Author
    Walker, S.
  3. Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997) 8.40
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    Walker, S.
  4. Walker, S.: Subject access in online catalogues (1991) 8.40
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  5. Mitev, N.N.; Venner, G.M.; Walker, S.: Designing an online public access catalogue : OKAPI, a catalogue on a local area network (1985) 8.40
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    Author
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  6. Ogden, J.; Summers, E.; Walker, S.: Know(ing) Infrastructure : the wayback machine as object and instrument of digital research (2023) 8.40
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