A Confidential matter : The Letters of Richard Strauss and Stefan Zweig, 1931-1935 - Zweig, Stefan; Strauss, Richard; Knight, Max; Lowinsky, Edward E. (Berkeley : University of California, 1977)
Edición original: Richrad Strauss-Stefan Zweig : Briefwechsel. Frankfurt am Main : Fischer, 1957.
Keywords: 1931-1935; Correspondencia; Austria; Alemania