@electronic{karte1579,
  author = {Kassel, Landesbibliothek},
  interhash = {b58e0725e51f2970bb0b1407a2ce3149},
  intrahash = {83f4c96d7ddf187befc53a26671d0666},
  title = {Historische Karte von Hessen},
  year = 1579
}