Columbia subject headings:
Art treasures in war--Europe--Congresses.
Cultural property--Protection--Europe--History--20th century--Congresses.
National socialism and art--Congresses.
World War, 1939-1945--Art and the war--Congresses.
Harvard subject headings:
Art and war.
Art treasures in war--Europe--History--20th century.
Cultural property--Europe--Safety measures--History--20th century.
Libraries and national socialism.
National socialism and art.
World War, 1939-1945--Europe--Art and the war.
Princeton subject headings:
Art treasures in war--Europe--Congresses.
Cultural property--Protection--Europe--History--20th century--Congresses.
National socialism and art--Congresses.
World War, 1939-1945--Art and the war--Congresses.