Columbia subject headings:
Fontane, Theodor, 1819-1898--Homes and haunts--Italy--Congresses.
Harvard subject headings:
Fontane, Theodor, 1819-1898--Criticism and interpretation--Congresses.
Fontane, Theodor, 1819-1898--Homes and haunts--Italy--Congresses.
Italy--In literature--Congresses.
Princeton subject headings:
Fontane, Theodor, 1819-1898--Homes and haunts--Italy--Congresses.