@book{Gustrau2023,
  author    = {Gustrau, Frank},
  title     = {Electromagnetic Design},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {978-3-446-47418-5},
  pages     = {330},
  year      = {2023},
  language  = {de}
}
@book{Gustrau2018,
  author    = {Gustrau, Frank},
  title     = {Angewandte Feldtheorie},
  publisher = {Fachbuchverlag Leipzig im Carl Hanser Verlag},
  address   = {M{\"u}nchen},
  isbn      = {978-3-446-45671-6},
  pages     = {280},
  year      = {2018},
  language  = {de}
}