@incollection{Graf2013,
  author    = {Johannes Graf},
  title     = {Die ersten Schwarzw{\"a}lder Kuckucksuhren},
  series = {»Kuckucksuhr, mon amour« : Faszination Kuckucksuhr},
  publisher = {Theiss},
  address   = {Stuttgart},
  isbn      = {978-3-8062-2797-0},
  pages     = {38 -- 47},
  year      = {2013},
  language  = {de}
}