Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
The Bird Seller by Zeller, Ġim 26 Jan 2001, Minn (2000/2001), Immexxi minn Helga Wolf,, Surmast Direttur Roland Seiffarth, Eckart Manke, Marcello Mottadelli, Stadttheater Bern, Berne, Switzerland