Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Twilight of the Gods by Wagner, Richard, Tli 15 Ġun 1999, Minn (1999/1999), Immexxi minn Pierre Audi,, Surmast Direttur Hartmut Haenchen, Dutch National Opera & Ballet, Amsterdam, Netherlands