Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Iolanta by Tchaikovsky, P. I., Ħam 10 Apr 2014, Minn (2013/2014), Immexxi minn Oleg Dolgopolov,, Surmast Direttur Vladimir Boykov, Nizhny Novgorod State Academic Opera and Ballet Theatre, Nizhniy Novgorod, Russia