Columbia subject headings:
Gutzkow, Karl, 1811-1878--Criticism and interpretation.
Harvard subject headings:
German literature--Publishing--19th century--History and criticism--Congresses.
Gutzkow, Karl, 1811-1878--Congresses.
Journalism--Germany--History--19th century--Congresses.
Publishers and publishing--Germany--History--19th century--Congresses.
Princeton subject headings: