Columbia subject headings:
Harvard subject headings:
Ecole normale supérieure (France)
Education, Higher--France--Paris--History--20th century.
France--History--German occupation, 1940-1945.
Students--France--Paris--Political activity--History--20th century.
Students--Political activity--France--Paris--History--20th century.
World War, 1939-1945--Education and the war.
Princeton subject headings:
École normale supérieure (France)
France--History--German occupation, 1940-1945.