@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{HeinrichsWeckGillessen1977,
  author    = {Heinrichs, Horst and Weck, H. and Gillessen, R.},
  title     = {Abschlussbericht zum Zeichnungssystem Freedraft zur rechnerunterstuetzten Zeichnungserstellung},
  address   = {Aachen},
  year      = {1977},
  language  = {de}
}
@book{Gebhardt2016,
  author    = {Gebhardt, Andreas},
  title     = {Additive Fertigungsverfahren : Additive Manufacturing und 3D-Drucken f{\"u}r Prototyping - Tooling - Produktion},
  edition   = {5. aktualisierte und erweiterte Auflage},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {978-3-446-44401-0 ; 978-3-446-44539-0},
  doi       = {10.3139/9783446445390},
  pages     = {XXIV, 711 S. : zahlr. Ill. u. graph. Darst.},
  year      = {2016},
  language  = {de}
}
@book{GebhardtHoetter2016,
  author    = {Gebhardt, Andreas and H{\"o}tter, Jan-Steffen},
  title     = {Additive manufacturing : 3D printing for prototyping and manufacturing},
  publisher = {Hanser Publishers},
  address   = {Munich},
  isbn      = {978-1-56990-582-1 ; 978-1-56990-583-8},
  pages     = {591 S.},
  year      = {2016},
  language  = {en}
}
@book{Knepper2004,
  author    = {Knepper, Ludger},
  title     = {Aufbau eines Benchmark-Systems f{\"u}r operative Unternehmensprozesse},
  address   = {FH Aachen},
  year      = {2004},
  language  = {de}
}
@book{Knepper2004,
  author    = {Knepper, Ludger},
  title     = {Auslegung und Konstruktion von Hallentorantrieben},
  address   = {FH Aachen},
  year      = {2004},
  language  = {de}
}