S.
Cosentino,
"Constans II, Ravenna’s autocephaly and the panel of the
privileges in St. Apollinare in Classe: a reappraisal",
in
T. G.
Kolias,
K. G.
Pitsakis (eds.),
Aureus: volume dedicated to professor Evangelos K.
Chryssos,
Athens,
2014,
p. 153-169.