@article{Fahrmeir2008,
  author    = {Andreas Fahrmeir},
  title     = {Klassen-Grenzen: Migrationskontrolle im 19. Jahrhundert},
  journal   = {Rechtsgeschichte = Legal history},
  volume    = {12},
  pages     = {125 -- 138},
  doi       = {10.12946/rg12/125-138},
  year      = {2008},
}