@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
}

@book{hoh1994,
  address = {Bielefeld/Brackewede},
  author = {Höh, Rainer},
  interhash = {8d951f2520b9b8818a29d02fac24d52a},
  intrahash = {17f6af64f840699ff7949e119ff306d7},
  isbn = {3894161892 9783894161897},
  publisher = {P. Rump},
  refid = {31259296},
  title = {Land Thüringen},
  url = {http://www.worldcat.org/search?qt=worldcat_org_all&q=3894161892},
  year = 1994
}