Millard, A. R. (2000). Reading and Writing in the Time of Jesus. NYU Press. p. 56. ISBN0814756379. «C.P. Thiede drew on papyrology, statistics and forensic microscopy to try to prove O'Callaghan's case, yet without convincing the majority of leading specialists.»
McCready, Wayne O. (1997). «The Historical Jesus and the Dead Sea Scrolls». En Arnal, William E.; Desjardins, Michael, eds. Whose Historical Jesus?. Waterloo, ON: Wilfrid Laurier University Press. p. 193. ISBN0889202958.. «On the whole, O'Callaghan's thesis has met with scholarly skepticism since the fragments are extremely small, almost illegible, and his strongest case does not agree with known versions of Mark.»
