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Walker, S.; Hancock-Beaulieu, M.: OKAPI at city : an evaluation facility for interactive IR (1991) 0.00

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Walker, S.: Subject access in online catalogues (1991) 0.00

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Pages: S.23-33

Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.00

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Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.00

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Source: Journal of documentation. 48(1992) no.4, S.406-421

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