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  1. Khosh-khui, A.: Statistical analysis of the association between Library of Congress Subject Headings and their corresponding class notations in the main classes of LCC and DDC (1985) 0.04 
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  2. Lester, M.A.: Coincidence of user vocabulary and Library of Congress Subject Headings : experiments to improve subject access in academic library online catalogs (1989) 0.04 
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  3. Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979) 0.04 
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