@book{GrundmannBommesFricke2003,
  author    = {Grundmann, Reinhard and Bommes, Leonard and Fricke, J{\"u}rgen},
  title     = {Ventilatoren},
  publisher = {Vulkan-Verlag},
  address   = {Essen},
  isbn      = {3-8027-3200-6},
  year      = {2003},
  language  = {de}
}