Ehrman, Bart D. Studies in the Textual Criticism of the New Testament. Leiden: Brill, 2006.
Gelpi, Donald L. The Firstborn of Many: a Christology for Converting Christians.
vol. 1 To Hope in Jesus Christ. Marquette University Press, 2001.
vol. 2 Synoptic Narrative Christology. Marquette University Press, 2001.
Theissen, Gerd. The Gospels in Context: Social and Political History in the Synoptic Tradition. Fortress Press, 1991.
Longstaff, Thomas R. W. Evidence of Conflation in Mark?: A Study in the Synoptic Problem. Scholars Press for the Society of Biblical Literature, 1977.
