Columbia subject headings:
Reuter, Fritz, 1810-1874--Congresses.
Harvard subject headings:
Authors, Low German--19th century--Congresses.
Low German literature--History and criticism--Congresses.
Reuter, Fritz, 1810-1874--Appreciation--Congresses.
Reuter, Fritz, 1810-1874--Congresses.
Reuter, Fritz, 1810-1874--Criticism and interpretation--Congresses.
Princeton subject headings:
Reuter, Fritz, 1810-1874--Congresses.