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Luhn, H.P.: Keyword-in-context index for technical literature (1960)
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Luhn, H.P.: ¬A statistical approach to the mechanical encoding and searching of literary information (1957)
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Luhn, H.P.: ¬The automatic derivation of information retrieval encodements from machine-readable texts (1961)
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Luhn, H.P.: Keyword-in-context index for technical literature (1985)
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Luhn, H.P.: Keyword-in-context index for technical literature : KWIC index (1959)
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