The Byzantine Office of ἘΠῚ ΤῶΝ ΚΡΊΣΕΩΝ and Its Holders (in the Light of Sphragistic Evidence and Written Sources)

Studia Ceranea : journal of the Waldemar Ceran Research Centre for the History and Culture of the Mediterranean Area and South-East Europe, Tom 7 (2017) s. 9-25
Symeon Antonov