3Ronald S. Cole-Turner, "Anti-Heretical Issues and the Debate over Galatinas in the Letters of St.Augustine to St. Jerome," Augustinian Studles, vol. 11 (1980), p. 155.
4Robert O'Connell, "When Saintly Fathers Feuded: The Correspondence between Augustine and Jerome," Thought, 54 (1979), pp. 344-364.
5Ralph Hennings, "The Correspondence between Augustine and Jerome," Studia Patristica, 27 (1993).
6W. H. C. Frend, "Fussala: Augustine's Crisis of credibility," Les Lettres de Saint Augustin par Johannes Divjak, Paris: Etudes Augustiniennes, 1983, p. 251.
7Ilona Opelt, "Augustins Epistula 20^* (Divjak) ein Zeugnis fur Lebendiges Punisch im 5. JH. Nach Christus," Augustinianum, 1985, pp. 121-132.
8Martin Klockener, "Augustins Kriterien zu Einheit und Vielffalt in der Liturgie nach seinen Briefen 54 und 55," Liturgisches Jahrbuch, 41 (1991).
9Daniel E. Doyle, "Doctrinal Discipline in the Letters of St. Augustine," Studia Patristica, 38 (2001),pp. 84-94.
10Kauko K. Raikas, "The Principle of Juridical Vulgarization in the Letters of St. Augustine," J. Divjak(ed.), Studia Ephemerides Augustinianum, 31 (1990), pp. 413-425.
