Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Parsifal by Wagner, Richard, Ħam 28 Mar 2002, Minn (2002/2002), Immexxi minn August Everding,, Surmast Direttur George Alexander Albrecht, Ulf Schirmer, Wiener Staatsoper, Vienna, Austria