Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Valkyrie by Wagner, Richard, Ħad 11 Ott 1998, Minn (1998/1999), Immexxi minn Siegfried Schoenbohm,, Surmast Direttur Marc Soustrot, Lothar Koenigs, Wolfgang Ott, Opernhaus, Bonn, Germany