GREGORIS N.L., Mary’s Cooperation in the Oeconomia Salutis according to the Theology and Spirituality of the Venerable John Henry Newman:

A Perspective from which to view the Contemporary Discussion regarding the Marian Titles of Co-Redemptrix, Mediatrix and Advocate, Pontificia Facultas Marianum, Roma 2001, 603 pp. Published in 2004. See below.