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  • × author_ss:"Lehmann, F."
  1. Lehmann, F.: ¬Die Mediendokumentation der Deutschen Forschungsanstalt für Luft- und Raumfahrt (DLR) : konventionelle Dokumentation und Bilddatenbank Hand in Hand (1994) 0.00 
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  2. Lehmann, F.: Semiosis complicates high-level ontology (2000) 0.00 
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