Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Iolanta by Tchaikovsky, P. I., Ħam 29 Mar 2018, Minn (2018/2018), Immexxi minn Dieter Kaegi,, Surmast Direttur Alexander Anisimov, Francis Benichou, Vito Lattarulo, Stadttheater Biel, Biel/Bienne, Switzerland