@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {2nd Community Innovation Survey. 2nd Interim Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{GebhardtKesslerThurn2019,
  author    = {Gebhardt, Andreas and Kessler, Julia and Thurn, Laura},
  title     = {3D printing : understanding additive manufacturing},
  edition   = {2. Auflage},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {978-1-56990-702-3},
  pages     = {XVI, 204 Seiten},
  year      = {2019},
  language  = {en}
}
@book{Gebhardt2014,
  author    = {Gebhardt, Andreas},
  title     = {3D-Drucken : Grundlagen und Anwendungen des Additive Manufacturing (AM)},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {978-3-446-44238-2 ; 978-3-446-44237-5},
  pages     = {XIII, 186 S.},
  year      = {2014},
  language  = {de}
}
@book{DobischatWittEichetal.2015,
  author    = {Dobischat, Rolf and Witt, Gerd and Eich, Dieter and Marschall, Herbert and Thurn, Laura and Kunkel, Maximilian and Richter, Alina and Gebhardt, Andreas},
  title     = {3D-Drucken in Deutschland : Entwicklungsstand, Potentiale, Herausforderungen, Auswirkungen und Perspektiven},
  publisher = {Shaker-Verl.},
  address   = {Aachen},
  isbn      = {978-3-8440-3479-0},
  pages     = {170 S. : Ill., graph. Darst.},
  year      = {2015},
  language  = {de}
}
@book{GebhardtKesslerThurn2016,
  author    = {Gebhardt, Andreas and Kessler, Julia and Thurn, Laura},
  title     = {3D-Drucken: Grundlagen und Anwendungen des additive manufacturing (AM)},
  edition   = {2., neu bearbeitete und erweiterte Auflage},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {978-3-446-44672-4},
  doi       = {10.3139/9783446448452},
  pages     = {XVI, 218 Seiten},
  year      = {2016},
  language  = {de}
}
@book{Pfeiffer2003,
  author    = {Pfeiffer, Johann},
  title     = {3D-Freiformfl{\"a}chenmessung},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {2003},
  language  = {de}
}
@book{Nissen2008,
  author    = {Nissen, Holger},
  title     = {[Skripte]},
  year      = {2008},
  language  = {en}
}
@book{Laack2001,
  author    = {Laack, Walter van},
  title     = {A better history of our world / Vol. 1. The universe},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-1490-0},
  pages     = {188 S.},
  year      = {2001},
  language  = {en}
}
@book{Laack2002,
  author    = {Laack, Walter van},
  title     = {A better history of our world / Vol. 2. Life},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-2597-5},
  pages     = {236 S.},
  year      = {2002},
  language  = {en}
}