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• Barkan, Leonard, “Statues fixed and unfixed”, in Unearthing the Past. Archaeology and Aesthetics in the making of Renaissance Culture, 173-207.
• Warwick, Genevieve, “Speaking Statues: Bernini’s Apollo and Daphne at the Villa Borghese”, Art History,  vol 27 (2004), 353-381. 
• San Juan, Rose Marie, Rome: a city out of print, 2001.