Columbia subject headings:
Harvard subject headings:
Alemannisches Institut (Freiburg im Breisgau, Germany)--Influence.
Border security--Germany--History--20th century.
Borderlands--Germany--History--20th century.
Germany--Boundaries--History--20th century.
Germany--Politics and government--1888-1918
Germany--Politics and government--1918-1933
Germany--Politics and government--1933-1945.
Metz, Friedrich, 1890-1969--Influence.
Universität Freiburg im Breisgau--Influence.
Princeton subject headings:
Alemannisches Institut (Freiburg im Breisgau, Germany)--Influence.
Border security--Germany--History--20th century.
Borderlands--Germany--History--20th century.
Germany--Boundaries--History--20th century.
Germany--Politics and government--1888-1918.
Germany--Politics and government--1918-1933.
Germany--Politics and government--1933-1945.
Metz, Friedrich, 1890-1969--Influence.
Universität Freiburg im Breisgau--Influence.