Columbia subject headings:
Fritzsch, Ernst Wilhelm.
Wagner, Richard, 1813-1883--Correspondence.
Harvard subject headings:
Fritzsch, Ernst Wilhelm.
Wagner, Richard, 1813-1883. Correspondence
Princeton subject headings:
Composers--Germany--Correspondence.
Fritzsch, Ernst Wilhelm--Correspondence.
Publishers and publishing--Germany--Correspondence.
Wagner, Richard, 1813-1883. Correspondence.