Columbia subject headings:
Harvard subject headings:
German language--Lexicography--History--19th century--Congresses.
Lexer, Matthias, 1830-1892--Congresses.
Princeton subject headings:
Germanists--Germany--Biography--Congresses.
Lexer, Matthias, 1830-1892--Congresses.
Philologists--Germany--Biography--Congresses.