Referenced in:

• st: 237 - Durham, Cathedral Library, B. II. 30 (the ‘Durham Cassiodorus’) 614-15 and nn. 44-6
• st: 245 - Durham, Cathedral Library, B. IV. 6, fol. 169* 612-13 and n. 34
• st: 654 - Oxford, Bodleian Library, Laud gr. 35 (S.C. 1119) 623 and n. 86
• st: 847 - St Petersburg, Russian National Library, Q. v. XIV. 1 614 and n. 42
• st: 858 - New Haven, Yale University, Beinecke Library, 516 613-14 and n. 39
• st: 910 - [Rome], Città del Vaticano, Biblioteca Apostolica Vaticana, Pal. lat. 235, fols. 4-29 614