S. P. Brock,
“Developments in Editing Biblical Texts”, in
The Book Encompassed: Studies in Twentieth-Century Bibliography,
P. Davison, Ed. Cambridge: Oak Knoll Press, 1992, pp. 236–243.
W. L. Petersen,
“The Diatessaron”, in
The Anchor Bible Dictionary, vol. 2, 6 vol., New Haven: Yale University Press, 1992, pp. 189–190.