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Larson, R.R.: Evaluation of advanced retrieval techniques in an experimental online catalog (1992)
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Bland, R.N.: ¬The concept of intellectual level in cataloging and classification (1983)
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Golub, K.: Subject access in Swedish discovery services (2018)
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Chan, L.M.: Library of Congress class numbers in online catalog searching (1989)
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Drabenstott, K.M.: Classification to the rescue : handling the problems of too many and too few retrievals (1996)
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