^Cobley, Evelyn. Avant-Garde Aesthetics and Fascist Politics: Thomas Mann's Doctor Faustus and Theodor W. Adorno's Philosophy of Modern Music. New German Critique. Spring–Summer 2002, (86): 43–70 (63). JSTOR 3115201. doi:10.2307/3115201.
^Jean Witold, Ludwig van Beethoven: The Man and His Work (Paris 1964), p. 140: "The sonata went almost unnoticed by contemporaries and it would be not until later that they came to understand its richness."
^Zwei Skizzenbücher von B. aus den Jahren 1801 bis 1803, Breitkopf, pp. 19, 14 – cited by Rolland 1937,第517頁
^Rolland, Romain. Beethoven: Les grandes époques créatrices: Le chant de la résurrection. Paris: Sablier editions. 1937: 518–520.