DIETZ K., John Henry Newman and the Fathers of the Church:
The Birth of an Ecclesiology, Pontificia Studiorum Universitas a S. Thoma Aqu. in Urbe, Rome 2007, 287 pp.
The Birth of an Ecclesiology, Pontificia Studiorum Universitas a S. Thoma Aqu. in Urbe, Rome 2007, 287 pp.
Lectures on the Present Position of Catholics in England, Tesi dottorale, Roma-Santa Croce 2006, 221 pp.
A Theological Reflection in the Light of John Henry Newman’s Prayers to the Paraclete. Extractum ex Diss. ad Doctoratum, Roma, Urbaniana 2006, 207 pp.
An Examination of His Fundamental Pneumatic Ecclesiology, with a Special Reference to the Period 1826-1853, Dissertation-Maryvale Institute, Milton Keynes, Birmingham 2004.
Pontificia Universitas Sanctae Crucis, Romae 2003, 170 pp.
Extr.-Doctorate, Pont. Univ. Lateranense., Rome 2003, 224 pp.
Development or Corruption. Diss. Pamplona 2003, 339 pp.
A critical Evaluation of the Universal Call to Holiness in the Life and Writings of John Henry Cardinal Newman, Pontificia Studiorum Universitas a S. Thoma Aquino in Urbe, Roma 2001, 139 pp.
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.
Pontificia Studiorum Universitas a S. Thoma Aquino in Urbe, Roma 2001, VI + pp.102.