Referenced in:

• mss: 70 - Cambridge, Corpus Christi College, 223 449 n. 8
• st: 70 - Cambridge, Corpus Christi College, 223
• st: 252 - Edinburgh, National Library of Scotland, Advocates 18. 6. 12 449
• st: 541 - Oxford, Bodleian Library, Barlow 35 (S.C. 6467) 449 and n. 9