"Konversationstück für Musik in German in two acts (Conversation-piece for Music); Two act version produced by Rudolph Hartmann, Hamburg, 1957; Music by Richard Strauss; Libretto: Richard Strauss and Clemens Krauss; Premiere: Munich, Straatsoper, October 1942".
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries.