Columbia subject headings:
Harvard subject headings:
Heide (Germany)--History--20th century.
Heide (Schleswig-Holstein, Germany)--History.
National socialism--Germany--Heide (Schleswig-Holstein)
National socialism--Germany--Heide.
Princeton subject headings:
Heide (Schleswig-Holstein, Germany)--History--20th century.
National socialism--Germany--Heide (Schleswig-Holstein).
Rehn family.