Aethicus Ister, um 700?, and Otto Prinz. Die Kosmographie Des Aethicus. MGH, Quellen Zur Geistesgeschichte Des Mittelalters 14. München, 1993.
Formulae Marculfi, um 700?, and Karl Zeumer. Formulae Merowingici et Karolini Aevi. MGH LL 5. Hannover, 1886.
Hisperica Famina, um 660, and Michael W. Herren. The Hisperica Famina. The A-Text, a New Critical Edition with English Translation and Philological Commentary. Toronto, 1974.
Howlett, David. The Celtic Latin Tradition of Biblical Style. Blackrock, 1995.
Mohrmann, Christine. The Latin of Saint Patrick. Four Lectures. Dublin, 1961.
Wright, Roger, ed. Latin and the Romance Languages in the Early Middle Ages. London, New York, 1991.