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O'Brien, A.: Online catalogs : enhancements and developments (1994) 0.00

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Source: Annual review of information science and technology. 29(1994), S.219-242

Smith, I.A.; O'Brien, A.: Signposts to information : keywords, indexes and thesauri (1993) 0.00

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Source: Education libraries journal. 36(1993) no.3, S.7-27