Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Montezuma, Fallender Adler by Lang, Bernhard, Ħam 12 Jan 2012, Minn (2012/2012), Immexxi minn Peter Missotten,, Surmast Direttur Joseph Trafton, Nationaltheater, Mannheim, Germany