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Ellis, D.; Furner, J.; Willett, P.: On the creation of hypertext links in full-text documents : measurement of retrieval effectiveness (1996)
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Voorbij, H.: Title keywords and subject descriptors : a comparison of subject search entries of books in the humanities and social sciences (1998)
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Hider, P.: ¬The search value added by professional indexing to a bibliographic database (2017)
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Hider, P.: ¬The search value added by professional indexing to a bibliographic database (2018)
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