Widmoser, J. (1992). Modern String Quartet: Four Brothers. MOOD-Records.
Lua i Stíl Chicago (17ú heag.)Widmoser, Jörg. Modern String Quartet: Four Brothers. Heidelberg: MOOD-Records, 1992.
Lua MLA (8ú heag.)Widmoser, Jörg. Modern String Quartet: Four Brothers. MOOD-Records, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.