Sobek, W. (2009). Designing The Future. Goethe Institut.
Lua i Stíl Chicago (17ú heag.)Sobek, Werner. Designing The Future. Goethe Institut, 2009.
Lua MLA (8ú heag.)Sobek, Werner. Designing The Future. Goethe Institut, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.