1. Cassiodorus, Institutiones, ed. Roger Mynors (Oxford: Clarendon, 1961).
2. Cicero, De legibus libri tres, ed. C.F.W. Müller (Leipzig: Teubner, 1905).
3. Dionysius Exiguus, Epistula ad Eugipium presbyterum, ed. Jacques-Paul Migne, PL SL 67 (Paris, 1848), col. 345C–346B.
4. Eugippius, Commemoratorium Vitae Sancti Severini, ed. and trans. Rudolf Noll, Das Leben des heiligen Severin (Berlin: Akademie Verlag, 1963); Philippe Régerat (ed. and trans), Vie de Saint Séverin, Sources Chretiennes 374 (Paris: Cerf 1991); trans. Ludwig Bieler and Ludmilla Krestan, The Life of Saint Severin (Washington: Catholic University of America Press, 1965).
5. Eugippius, Excerpta ex Operibus Sancti Augustini, ed. Pius Knöll, CSEL 9.1 (Vienna: C Gerold, 1885).