Ubl, R. (2013). Prospectus: Blumenberg and Fried on Objecthood. The challenge of the object : 33rd Congress of the International Committee of the History of Art, Nuremberg, 15th - 20th July 2012 ; CIHA 2012, Nürnberg.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUbl, Ralph. "Prospectus: Blumenberg and Fried on Objecthood." The Challenge of the Object : 33rd Congress of the International Committee of the History of Art, Nuremberg, 15th - 20th July 2012 ; CIHA 2012, Nürnberg 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUbl, Ralph. "Prospectus: Blumenberg and Fried on Objecthood." The Challenge of the Object : 33rd Congress of the International Committee of the History of Art, Nuremberg, 15th - 20th July 2012 ; CIHA 2012, Nürnberg, 2013.
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