Dickel, C. (2015). Hulahoop: Jürgen Paas.
Lua i Stíl Chicago (17ú heag.)Dickel, Christina. Hulahoop: Jürgen Paas. Hamburg, 2015.
Lua MLA (8ú heag.)Dickel, Christina. Hulahoop: Jürgen Paas. 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.