Columbia subject headings:
Wagner, Richard, 1813-1883. Fliegende Holländer.
Wagner, Richard, 1813-1883. Lohengrin.
Wagner, Richard, 1813-1883. Tannhäuser.
Harvard subject headings:
Wagner, Richard, 1813-1883--Friends and associates.
Wagner, Richard, 1813-1883. Fliegende Holländer.
Wagner, Richard, 1813-1883. Lohengrin.
Wagner, Richard, 1813-1883. Tannhäuser.
Princeton subject headings: