Brückner, FrankFrankBrücknerBremen, SebastianSebastianBremenMüller, BernhardBernhardMüller2023-02-022023-02-022023https://publica.fraunhofer.de/handle/publica/43549610.1007/s40964-022-00377-52-s2.0-85146237973enSpecial issue of the Fraunhofer Direct Digital Manufacturing Conference DDMC 2023editorial