@book{FreyGebhardt2018,
  author    = {Eberhard Frey and Ute Gebhardt},
  title     = {Flusspferde am Oberrhein},
  edition   = {1. Auflage},
  series    = {wie war die Eiszeit wirklich?},
  doi       = {10.57962/regionalia-22613},
  year      = {2018},
}