Columbia subject headings:
Harvard subject headings:
Fontane, Theodor, 1819-1898--Congresses.
Fontane, Theodor, 1819-1898--Criticism and interpretation.
Germany--History--1789-1900--Congresses.
Princeton subject headings:
Fontane, Theodor, 1819-1898--Contemporary Germany--Congresses.
Germany--History--1789-1900--Congresses.