Hē synantēsē Symeōn kai Nikolaou Mystikou, (Augoustos 913)

Stauridou-Zaphaka, Alkmēnēs. Hē synantēsē Symeōn kai Nikolaou Mystikou, (Augoustos 913): sta plaisia tou Byzantinoboulgarikou antagōnismou / Alkmēnēs Stauridou-Zaphraka . - Thessalonikē : Kentron Byzantinōn Ereunōn, 1972 . - 130 h. 24 cm. - Byzantina keimena kai meletai 3 .
К.: Бібліогр. : с. 13-24


Simeon I King of Bulgaria 864 or 5-927
Nikolaos I Mystikos, Saint, Patriarch of Constantinople 852-925