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Luhn, H.P.: ¬A statistical approach to the mechanical encoding and searching of literary information (1957) 0.00

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Luhn, H.P.: Keyword-in-context index for technical literature : KWIC index (1959) 0.00

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Footnote: Reprinted in: Theory of subject analysis: a sourcebook. Ed. by. L.M. Chan et al. Littleton, CO: Libraries Unlimited 1985, S.170-180

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