@misc{Gebhardt2005,
  author    = {Gebhardt, Andreas},
  title     = {{\"U}bungsklausur zum Fach Werkstoffkunde 3},
  year      = {2005},
  abstract  = {{\"U}bungsklausur},
  language  = {de}
}
@book{GrundmannSchoenholtz1999,
  author    = {Grundmann, Reinhard and Sch{\"o}nholtz, Friedrich},
  title     = {„Ventilatoren-Fibel" der Firma Babcock-BSH},
  publisher = {Promotor-Verlag},
  address   = {Karlsruhe},
  year      = {1999},
  language  = {de}
}