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- authors%3a%22Robbio%2c A. de%22 2
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Luhn, H.P.: Keyword-in-context index for technical literature (1960)
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Luhn, H.P.: ¬The automatic derivation of information retrieval encodements from machine-readable texts (1961)
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- Information retrieval and machine translation. Vol.3. Pt.2. Ed. A. Kent
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