Hurtado, Larry W., “P45 and the Textual History of the Gospel of Mark,” in The Earliest Gospels: The Origins and Transmission of the Earliest Christian Gospels--The Contribution of the Chester Beatty Gospel Codex P45, ed. Charles Horton (Londres: T&T Clark International, 2004) pp. 132-48. (anglès)
Metzger, Bruce M., The Text of the New Testament: Its Transmission, Corruption and Restoration, Oxford University Press, 2005, p. 54. (anglès)