Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
How to Become Rich and Happy? by Spoliansky, Ġim 20 Mar 2015, Minn (2015/2015), Immexxi minn Christian Weise,, Surmast Direttur Dirk Sobe, Deutsches Nationaltheater, Weimar, Germany