Who's who in Wagner : an A-to-Z look at his life and work - Hodson, Phillip (New York : Macmillan, 1984)
"Wagner's literary works": p. 181-182.
Keywords: WAGNER, WILHELM RICHARD, -- 1813-1883 -- COMPOSICIONES MUSICALES; WAGNER, WILHELM RICHARD, -- 1813-1883 -- BIOGRAFIAS