@book{Dienst1974,
  author    = {Dienst, Karl-Jakob},
  title     = {{\"U}ber die Eigenschattengrenze hermitescher Quadriken / Karl Jakob Dienst},
  address   = {Darmstadt},
  pages     = {12 Bl.,},
  year      = {1974},
  language  = {de}
}
@book{Dienst1974,
  author    = {Dienst, Karl-Jakob},
  title     = {Eine charakteristische Spiegelungseigenschaft hermitischer [hermitescher] Quadriken / Karl Jakob Dienst},
  publisher = {Techn. Hochsch., Fachbereich Mathematik},
  address   = {Darmstadt},
  pages     = {14 Bl.,},
  year      = {1974},
  language  = {de}
}
@book{Hardt1974,
  author    = {Hardt, Arno},
  title     = {Das Transportsystem BANDIT zur Messung von Halbwertszeiten kurzlebiger, neutronenarmer Isotope},
  publisher = {Univ.},
  address   = {Bonn},
  pages     = {59 S.},
  year      = {1974},
  language  = {de}
}