Columbia subject headings:
Art and science--Germany--Congresses.
Arts, German--History--Congresses.
Humboldt-Gesellschaft für Wissenschaft, Kunst und Bildung--Congresses.
Learned institutions and societies--Germany--Congresses.
Harvard subject headings:
Art and science--Germany--Congresses.
Arts, German--History--Congresses.
Humboldt-Gesellschaft für Wissenschaft, Kunst und Bildung--Congresses.
Learned institutions and societies--Germany--Congresses.
Princeton subject headings: