Columbia subject headings:
Archival materials--Digitization.
German literature--Digitization.
Literature--Digitization.
Harvard subject headings:
Archival materials--Digitization
German literature--20th century--History and criticism
German literature--Digitization.
Literature--Digitization.
Princeton subject headings:
Archival materials--Digitization.
German literature--Digitization.
Literature--Digitization.