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© May 2005 Lorentz JÄNTSCHI && Sorana Daniela BOLBOACĂ

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 L01 Information Science D007254 +
  L01.453 Information Services D007255 +
   L01.453.245 Documentation D004282 +
    L01.453.245.945 Vocabulary, Controlled D018875 +
     L01.453.245.945.500 Logical Observation Identifiers Names and Codes D039703