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Charles M. Radding and Antonio Ciaralli. The Corpus iuris civilis in the Middle Ages: Manuscripts and Transmission from the Sixth Century to the Juristic Revival (Brill's Studies in Intellectual History 147. Leiden-Boston: Brill, 2007) Chapter 6.
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Herman Lange, Römisches Recht im Mittelalter, 1: Die Glossatoren. München: 1997 and Herman Lange and Maximiliane Kriechbaum, Römisches Recht im Mittelalter, 2: Die Kommentatoren. München: 2007.
Digestum vetus Dig. 1.1-24.2
Biblioteca Apostolica Vaticana lat. 1406
Paris, Bibliothèque Nationale de France lat. 4450
Infortiatum Dig. 24.3-38.17
Digestum novum Dig. 39.1-50.17
Firenze, Biblioteca Laurenziana, Codex Florentinus, sine numero
Wolfgang Peter Müller, "The Recovery of Justinian's Digest in the Middle Ages," Bulletin of Medieval Canon Law 20 (1990) 1-29