Columbia subject headings:
Composers--Germany--Correspondence.
Pianists--Germany--Correspondence.
Schumann, Clara, 1819-1896--Correspondence.
Schumann, Robert, 1810-1856--Correspondence.
Harvard subject headings:
Princeton subject headings:
Composers--Germany--Correspondence.
Pianists--Germany--Correspondence.
Schumann, Clara, 1819-1896--Correspondence.
Schumann, Robert, 1810-1856--Correspondence.