Columbia subject headings:
Harvard subject headings:
Authors, German
Authors, German--19th century--Biography
Storm, Theodor, 1817-1888.
Princeton subject headings:
German poetry--19th century--History and criticism.
Philosophers--Germany--Biography.
Poets, German--19th century--Biography.
Storm, Karl, 1853-1899.
Storm, Theodor, 1817-1888.
Tönnies, Ferdinand, 1855-1936.