Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Twilight of the Gods by Wagner, Richard, Ħad 13 Nov 2011, Minn (2011/2011), Immexxi minn Sven-Eric Bechtolf,, Surmast Direttur Christian Thielemann, Wiener Staatsoper, Vienna, Austria