"Christentum." . . . . "Controversial literature" . . . . . . . . . . . . . . "A challenge to Islam for reformation : the rediscovery and reliable reconstruction of a comprehensive pre-islamic christian Hymnal hidden in the Koran under earliest Islamic reinterpretations" . . . "Criticism, interpretation, etc" . . . . "Criticism, interpretation, etc"@en . . . . . . "A challenge to Islam for reformation : the rediscovery and reliable reconstruction of a comprehensive pre-Islamic Christian hymnal hidden in the Koran under earliest Islamic reinterpretations" . "Sources" . "A challenge to Islam for reformation : the rediscovery and reliable reconstruction of a comprehensive pre-Islamic Christian hymnal hidden in the Koran under earliest Islamic reinterpretations"@en . . . . "Receptie." . . "Christendom." . . "Textgeschichte." . . "Hymns, Early Christian History and criticism." . . "Vroegchristelijke literatuur." . . . . "Qurʼan" . . "Qurʼan." . "Koran." . . "Rezeption." . . "Entstehung." . . "Islam." . . "Corán Interpretación." . . "Hymns, Early Christian." . . "Koran." . . "Interpretation." . .