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Lathrop, L.: Indexing after the millenium 2 : existing skills influence future development (1998)
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Martin, L.M.: Evaluating OPACs or, OPACs are reference tools, too! (1992)
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Milstead, J.L.: Standards for relationships between subject indexing terms (2001)
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Limberg, L.: Experiencing information seeking and learning : a study of the interaction between two phenomena; summary (1998)
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Beare, G.: Local newspaper indexing projects and products (1989)
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