Upplýsingar frá listasamtökum (staðfest af Operabase)
The Bird Seller by Zeller, lau 10 feb 2001, Frá (2000/2001), Leikstýrt af Helga Wolf,, Hljómsveitarstjóri Roland Seiffarth, Eckart Manke, Marcello Mottadelli, Stadttheater Bern, Berne, Switzerland