D. Plooij,
“Der Descensus ad inferos in Aphrahat und den Oden Salomos”,
Zeitschrift für die Neutestamentliche Wissenschaft, vol. 14, pp. 222-231, 1913.
W. L. Petersen,
“The Diatessaron”, in
The Anchor Bible Dictionary, vol. 2, 6 vol., New Haven: Yale University Press, 1992, pp. 189–190.
L. Pirot, Robert, A., Cazelles, H., Briend, J., and Quesnel, M., Eds.,
Dictionnaire de la Bible: supplément. Mystères - passion. Paris: Letouzey & Ané, 1960.