@misc{AzarhoushangTawakoli2009,
  author    = {Bahman Azarhoushang and Taghi Tawakoli},
  title     = {Ultraschalleinheit f{\"u}r die Materialbearbeitung},
  url       = {https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat\&docid=DE102009017248A1},
  year      = {2009}
}