Campbell, B. (2002). 'Kein schöner Land': The Spielschar Ekkehard and the struggle to define German national identity in the Weimar Republic. Music and German national identity.
Lua i Stíl Chicago (17ú heag.)Campbell, Bruce. "'Kein Schöner Land': The Spielschar Ekkehard and the Struggle to Define German National Identity in the Weimar Republic." Music and German National Identity 2002.
Lua MLA (8ú heag.)Campbell, Bruce. "'Kein Schöner Land': The Spielschar Ekkehard and the Struggle to Define German National Identity in the Weimar Republic." Music and German National Identity, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.