@book{Clemmensen2012,
  author    = {Steen Clemmensen},
  title     = {Donaueschinger Wappenbuch},
  series    = {Karlsruhe, Badische Landesbibliothek : Hs. Don. 496},
  doi       = {10.57962/regionalia-15549},
  year      = {2012},
}