Bibliografia
Gerhart B. LADNER, « The Gesture of Prayer in Papal iconography of the Thirteenth and Early Fourteenth Centuries », Images and Ideas in the Middle Ages. Selected studies in History and Art, 1, Roma, Edizioni di Storia e Letteratura, 1983 (Storia e Letteratura. Raccolta di Studi e Testi, 155), p. 209-237 : 17 fig.
Gerhart B. LADNER, Images and Ideas in the Middle Ages, Selected studies in History and Art, 1
p. 209-237 : 17 fig.
Etude
Chapitre de livre
ICO. X 1282 (8°)