@book{SchulzFeldmannKapell2018,
  author    = {Schulz, Colin and Feldmann, Carsten and Kapell, Rica},
  title     = {Innovative Gesch{\"a}ftsmodelle mit 3D-Druck - Handlungsfelder f{\"u}r KMU},
  address   = {Coesfeld, M{\"u}nster},
  isbn      = {978-3-00-059554-7},
  year      = {2018},
  language  = {de}
}
@book{ValleeSchulzPumpe2018,
  author    = {Vall{\´e}e, Franz and Schulz, Colin and Pumpe, Andreas},
  title     = {Omnichannel im Handel - Was nicht nur die Fashionbranche wissen sollte},
  edition   = {1. Auflage},
  publisher = {Huss-Verlag},
  address   = {M{\"u}nchen},
  isbn      = {978-3-946350-76-7},
  pages     = {184},
  year      = {2018},
  language  = {de}
}
@book{FeldmannSchulzFernstroening2019,
  author    = {Feldmann, Carsten and Schulz, Colin and Fernstr{\"o}ning, Sebastian},
  title     = {Digitale Gesch{\"a}ftsmodell-Innovationen mit 3D-Druck: Erfolgreich entwickeln und umsetzen},
  publisher = {Springer Gabler},
  address   = {Wiesbaden},
  isbn      = {978-3-658-25161-1},
  doi       = {10.1007/978-3-658-25162-8},
  publisher      = {FH M{\"u}nster - University of Applied Sciences},
  pages     = {159},
  year      = {2019},
  language  = {de}
}