Sterling, B. (2012). Data Mine: Bruce Sterling On Petra Cortright's "Hell_Tree", 2012. Artforum.
Lua i Stíl Chicago (17ú heag.)Sterling, Bruce. "Data Mine: Bruce Sterling On Petra Cortright's "Hell_Tree", 2012." Artforum 2012.
Lua MLA (8ú heag.)Sterling, Bruce. "Data Mine: Bruce Sterling On Petra Cortright's "Hell_Tree", 2012." Artforum, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.