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Borko, H.: Toward a theory of indexing (1977)
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Borko, H.; Tarr, D.: Factors influencing inter-indexer consistency (1974)
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Borko, H.; Bernier, C.L.: Indexing concept and methods (1978)
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Borko, H.; Bernier, C.L.: Abstracting concepts and methods (1975)
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