Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Gypsy Princess by Kálmán, Ħad 17 Fra 2013, Minn (2013/2013), Immexxi minn Ricarda Regina Ludigkeit,, Surmast Direttur Philipp Armbruster, Opernhaus Dortmund, Dortmund, Germany