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author_ss:"Williams, R.V."
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theme_ss:"Automatisches Indexieren"
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theme_ss:"Geschichte der Sacherschließung"
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Williams, R.V.: Hans Peter Luhn and Herbert M. Ohlman : their roles in the origins of keyword-in-context/permutation automatic indexing (2010)
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- Journal of the American Society for Information Science and Technology. 61(2010) no.4, S.835-849