@misc{HeineZumbraegel2018,
  author    = {Eike-Christian Heine and Christian Zumbr{\"a}gel},
  title     = {Technikgeschichte},
  doi       = {10.14765/zzf.dok-1319},
  url       = {http://docupedia.de/zg/Heine_zumbraegel_technikgeschichte_v1_de_2018},
  type      = {webpublication},
  year        = {2018},
}