Columbia subject headings:
Harvard subject headings:
Strauss, Richard, 1864-1949. Elektra.
Wagner, Richard, 1813-1883. Parsifal.
Women in opera--Congresses.
Princeton subject headings:
Strauss, Richard, 1864-1949. Elektra.
Wagner, Richard, 1813-1883. Parsifal.
Women in opera--Congresses.