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  • × year_i:[1950 TO 1960}
  • × type_ss:"?"
  1. Luhn, H.P.: Keyword-in-context index for technical literature : KWIC index (1959) 0.06
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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