From Constantine to Justinian : A marble relief of the Theodosian period.
On the interpretation of stylistic changes in late antique art.
Mosaic pavements in the Greek East and the question of a "Renaissance" under Justinian.
Stylistic developments in pavement mosaics in the Greek East from the age of Constantine to the age of Justinian.
From Justinian to iconoclasm : The cult of images in the age before iconoclasm.
Byzantine art in the period between Justinian and iconoclasm.
On some icons of the seventh century.
Some reflections on portraiture in Byzantine art.
Byzantium and the Medieval West : The first mosaic decoration of Salerno cathedral.
The mosaics of the Cappella Palatina in Palermo.
On the portrait of Roger II in the Martorana in Palermo.
World map and fortune's wheel; a medieval mosaic floor in Turin.
The Byzantine contribution to western art of the twelfth and thirteenth centuries.
