Lua APA (7ú heag.)

Schmitz, E. (2004). Sigmar Polke: "Recent Paintings and Drawings 1998 - 2002" ; Dallas Museum of Art, 15.11.2002 - 6.4.2003 ; "History of Everything" ; Tate Modern, London, 2.10.2003 - 4.1.2004. Kunstforum.

Lua i Stíl Chicago (17ú heag.)

Schmitz, Edgar. "Sigmar Polke: "Recent Paintings and Drawings 1998 - 2002" ; Dallas Museum of Art, 15.11.2002 - 6.4.2003 ; "History of Everything" ; Tate Modern, London, 2.10.2003 - 4.1.2004." Kunstforum 2004.

Lua MLA (8ú heag.)

Schmitz, Edgar. "Sigmar Polke: "Recent Paintings and Drawings 1998 - 2002" ; Dallas Museum of Art, 15.11.2002 - 6.4.2003 ; "History of Everything" ; Tate Modern, London, 2.10.2003 - 4.1.2004." Kunstforum, 2004.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.