Retrato de Toscanini

"Retrato de Arturo Toscanini" in Paul Stefan. Retrato de Toscanini. Buenos Aires: Editorial Claridad, 1954. 188p. Illustrated with many photographs. Prefaces by Stefan Zweig and Friderike Maria Zweig Winternitz [Biblioteca musical, 8]. Stefan Zweig, "Retrato de Arturo Toscanini", pp. 7-16. Friderike Maria Zweig Winternitz, "Prefacio", pp. (65)-77. The prefaces were translated into Spanish by Gregory Warren

[2010]: Ediciones sequitur

"Prólogo al libro Toscanini de Paul Stefan" in El misterio de la creación artística [2010], No. 4, pp. 63-77