1. Critiques of Master-Representations: The Political Dimension of the Canon between the Bible and the Qur’an’;Appel;Journal of Religion and Transformation,2018
2. Appel, Kurt (2021). Quando il cielo si squarcia. Il corano come evangelo per I Cristiani, EDB Edizioni Dehoniane Bologna.
3. Asad, Muhammad (1980). The Message of the Qur’an, Dar al-Andalus.
4. Maria—Siegerin in Schlachten;Bachl;Stichworte,1983
5. Mosher, Lucinda, and Marshall, David (2019). Power Divine and Human. Christian and Muslim Perspectives. A Record of the Sixteenth Building Bridges Seminar, Georgetown University Press.