@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}
}
@article{GrundmannBommes2004,
  author    = {Grundmann, Reinhard and Bommes, Leonhard},
  title     = {Analyse von Kennfeldern drallgesteuerter Radialventilatoren},
  series = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 55 (2004), H. 8},
  journal   = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 55 (2004), H. 8},
  isbn      = {0017-9906},
  pages     = {54 -- 62},
  year      = {2004},
  language  = {de}
}