Kardong, T. G.  (2019).  Saint Benedict and the Twelfth-Century Reformation. American Benedictine Review, 70(3), 295-330.

Kardong, T. G.  (2017).  Saint Columban. His Life, Rule, and Legacy. Cistercian Studies Series (Vol. 270, p. 262). Collegeville: Liturgical Press.

Kardong, T. G.  (2009).  The Sources of Smaragdus? Commentary on TB 3: Calling the Brothers to Council . The American Benedictine Review, 60(3), 253-275.