Orthodox Patriarchate of Rome. The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp. 38–39. Rev. Richard Stanton. A Menology of England and Wales, or, Brief Memorials of the Ancient British and English Saints Arranged According to the Calendar, Together with the Martyrs of the 16th and 17th Centuries. London: Burns & Oates, 1892. pp. 54-55. Greek Sources Great Synaxaristes: 5 Φεβρουαρίου. Μεγασ Συναξαριστησ. Συναξαριστής. 5 Φεβρουαρίου. Ecclesia.gr. (H Εκκλησια Τησ Ελλαδοσ). Russian Sources 18 февраля (5 февраля). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru). February in the Eastern Orthodox calendar