found: Alexandra, M. Deutsche Lieder [SR] 2017:container (Miriam Alexandra, Sopran) insert (b. Heidelberg)
found: Viardot-García, Pauline, 1821-1910. Ausgewählte Lieder füür Singstimme und Klavier. Band I, 2021:t.p. (herausgegeben von Miriam-Alexandra Wigbers)
found: Bach-cantatas website, viewed 13 February 2023(Miriam Alexandra (Soprano). Born: 1981, Heidelberg. The German-Greek soprano and musicologist, Miriam Alexandra [bourgeois Miriam-Alexandra Wigbers, née Müller], studied singing and school music at the Musikhochschule Karlsruhe)