Zöllner, F. From the Face to the Aura: Leonardo da Vinci's Sfumato and the History of Female Portraiture / Frank Zöllner. Inventing faces : rhetorics of portraiture between Renaissance and Modernism.(2013).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zöllner, Frank. "From the Face to the Aura: Leonardo Da Vinci's Sfumato and the History of Female Portraiture / Frank Zöllner." Inventing Faces : Rhetorics of Portraiture Between Renaissance and Modernism.(2013) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zöllner, Frank. "From the Face to the Aura: Leonardo Da Vinci's Sfumato and the History of Female Portraiture / Frank Zöllner." Inventing Faces : Rhetorics of Portraiture Between Renaissance and Modernism.(2013), .
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