Iōannēs kai Theodosios Zygomalas: patriarcheio, thesmoi, cheirographa : patriarchatus, institutiones, codices = Ioannes et Theodosios Zygomalas - Perentidēs, Stauros; Steirēs, Geōrgios; Zygomalas, Johannes; Zygomalas, Theodosius (Daidalos, 2009)