@misc{Aburaia,
  author    = {Aburaia, Mohamed},
  title     = {Digital Manufacturing},
  subject      = {Industry 4.0},
  language  = {en}
}
@misc{PapaKaselautzkeRadingeretal.,
  author    = {Papa, Maximilian and Kaselautzke, David and Radinger, Thomas and Stuja, Kemajl},
  title     = {Development of a safety industry 4.0 production environment},
  subject      = {Industry 4.0},
  language  = {en}
}