@incollection{Graf2017,
  author    = {Johannes Graf},
  title     = {Das franz{\"o}sische Jahrhundert},
  series = {Rasselbande: kleine Kulturgeschichte des Weckers},
  publisher = {Deutsches Uhrenmuseum},
  address   = {Furtwangen},
  isbn      = {978-3-922673-36-1},
  pages     = {18 -- 27},
  year      = {2017},
  language  = {de}
}