Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
West Side Story by Bernstein, Ħad 27 Ġun 2004, Minn (2004/2004), Immexxi minn Wolfram Mehring,, Surmast Direttur Rasmus Baumann, Arne Willimczik, Giulia Glennon, Opernhaus, Kassel, Germany