Columbia subject headings:
Bülow, Hans von, 1830-1894--Correspondence--Exhibitions.
Wagner, Cosima, 1837-1930--Correspondence--Exhibitions.
Wagner, Richard, 1813-1883--Exhibitions.
Wagner, Richard, 1813-1883--Friends and associates--Exhibitions.
Wagner, Richard, 1813-1883--Performances--Germany--Munich--Exhibitions.
Wagner, Richard, 1813-1883. Tristan und Isolde--Exhibitions.
Harvard subject headings:
Bayerische Staatsbibliothek--Exhibitions.
Bülow, Hans von, 1830-1894--Correspondence--Exhibitions.
Wagner, Cosima, 1837-1930--Correspondence--Exhibitions.
Wagner, Richard, 1813-1883--Exhibitions.
Wagner, Richard, 1813-1883--Friends and associates--Exhibitions.
Wagner, Richard, 1813-1883--Performances--Germany--Munich--Exhibitions.
Wagner, Richard, 1813-1883. Tristan und Isolde--Exhibitions.
Princeton subject headings:
Bülow, Hans von, 1830-1894--Correspondence--Exhibitions.
Wagner, Cosima, 1837-1930--Correspondence--Exhibitions.
Wagner, Richard, 1813-1883 Exhibitions.--Performances--Germany--Munich
Wagner, Richard, 1813-1883--Exhibitions.
Wagner, Richard, 1813-1883--Friends and associates--Exhibitions.
Wagner, Richard, 1813-1883. Tristan und Isolde--Exhibitions.