@book{dierssen1989,
  address = {HB-Verl.- und Vertriebsges.},
  author = {Dierssen, Gerhard},
  howpublished = {Hamburg},
  interhash = {90d15f63e7c46e5688dd932a465c1cd1},
  intrahash = {6b6d862e940ef2ee5bc937375f3e5e52},
  isbn = {3-616-06080-X},
  pages = {98 S.},
  title = {Harz, Leinebergland, Eichsfeld. Bildatlas},
  year = 1989
}