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  author    = {Hillebrandt, Annette},
  title     = {Vorwort},
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  year      = {2010},
  language  = {mul}
}
@article{Hillebrandt2010,
  author    = {Hillebrandt, Annette},
  title     = {Vorwort},
  series = {BDA Auszeichnung guter Bauten},
  volume    = {Gelsenkirchen Vest R},
  journal   = {BDA Auszeichnung guter Bauten},
  pages     = {3},
  year      = {2010},
  language  = {mul}
}
@article{Hillebrandt2011,
  author    = {Hillebrandt, Annette},
  title     = {Tag der Architektur: "Besser Wohnen" war das Motto},
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  journal   = {Westf{\"a}lische Nachrichten - Warendorf},
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  pages     = {Teil einer Seite},
  year      = {2011},
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}
@article{Rotermund2018,
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  title     = {Steigende Nutzungskosten von B{\"u}ros},
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  volume    = {2018},
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  year      = {2018},
  language  = {de}
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@article{Rotermund2018,
  author    = {Rotermund, Uwe},
  title     = {Outsourcing von FM-Leistungen},
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  year      = {2018},
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@article{Arnsberg2010,
  author    = {Arnsberg, BDA},
  title     = {Metallwerkst{\"u}ck},
  series = {BDA Auszeichnung guter Bauten},
  volume    = {Arnsberg-S{\"u}dwestfale},
  journal   = {BDA Auszeichnung guter Bauten},
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  year      = {2010},
  language  = {mul}
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@article{Ehrlinger2011,
  author    = {Ehrlinger, Susanne},
  title     = {Metallwerkst{\"u}ck},
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  journal   = {Ausgezeichnete Architektur Deutscher Fassadenpreis 2011},
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  year      = {2011},
  language  = {mul}
}
@article{JacobFreitag2009,
  author    = {Jacob-Freitag, Susanne},
  title     = {Meister der Baul{\"u}cke, Minimum Impact House},
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  journal   = {Mikado},
  year      = {2009},
  language  = {de}
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@article{Arning2009,
  author    = {Arning, Matthias},
  title     = {Mearkenzeichen Greenbuilding},
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  journal   = {Frankfurter Rundschau},
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@article{Otto2011,
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  title     = {Luftschloss im Passivhausstandard},
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  year      = {2011},
  language  = {de}
}