Umathum, S. (2019). the equally valid image: Considerations on Ragnar Kjartansson's art of challenging the hierarchy between attending a performance and relying on its photographic remains. Performing arts in transition : moving between media.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUmathum, Sandra. "The Equally Valid Image: Considerations on Ragnar Kjartansson's Art of Challenging the Hierarchy Between Attending a Performance and Relying on Its Photographic Remains." Performing Arts in Transition : Moving Between Media 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUmathum, Sandra. "The Equally Valid Image: Considerations on Ragnar Kjartansson's Art of Challenging the Hierarchy Between Attending a Performance and Relying on Its Photographic Remains." Performing Arts in Transition : Moving Between Media, 2019.