Columbia subject headings:
Schleswig-Holstein (Germany)--Politics and government--20th century.
Schleswig-Holstein (Germany)--Politics and government--21st century.
Harvard subject headings:
Schleswig-Holstein (Germany)--Politics and government--20th century.
Schleswig-Holstein (Germany)--Politics and government--21st century.
Schleswig-Holsteinischer Heimatbund--History.
Princeton subject headings:
Schleswig-Holstein (Germany)--Politics and government--20th century.
Schleswig-Holstein (Germany)--Politics and government--21st century.
Schleswig-Holsteinischer Heimatbund--History.