Barbara Roggema

• Christian-Muslim Relations
• The legend of Sergius Baḥīrā
• The three rings
• Christian Muslim relations
• Christian-Muslim Relations. a Bibliographical History. Volume 1 (600-900) Vol. 1
• Jewish-Christian Relations from the Mediterranean to the Indian Ocean : Volume One
• Legend of Sergius Baḥīrā
• Patristic Literature in Arabic Translations
• Patterns of Argumentation and Exchange of Ideas in Late Antiquity and Early Islam