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  • × author_ss:"Pieper, D."
  • × author_ss:"Summann, F."
  1. Pieper, D.; Summann, F.: ¬Die Entwicklung des Zugangssystems der Digitalen Bibliothek NRW (1999) 0.00 
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  2. Pieper, D.; Summann, F.: Bielefeld Academic Search Engine (BASE) : an end-user oriented institutional repository search service (2006) 0.00 
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