@incollection{Thraenhardt2005,
  author    = {Dietrich Thr{\"a}nhardt},
  title     = {Der Nationalstaat als migrationspolitischer Akteur},
  booktitle = {Nationalstaat},
  editor    = {Dietrich Thr{\"a}nhardt and Uwe Hunger},
  url       = {http://www.zeithistorische-forschungen.de/sites/default/files/medien/material/thraenhardt_0305.pdf},
  year      = {2005},
}