Christian Scholar's Review
In this paper, Jack Mulder, Jr. argues that those who hold 1) the major Christological and Trinitarian tenets of the historic Christian faith and 2) the view that original sin and its psychological consequences are in some way inherited and not learned (which includes a wide swath of leading figures in the historic Christian tradition) have strong reasons for why they should also hold that the Virgin Mary never received original sin (or its psychological consequences).
Mulder, Jack E. "Why More Christians Should Believe in Mary's Immaculate Conception." Christian Scholar's Review 41, no. 2.00 (2012): 117-134.