Referenced in:

• mss: 473 - London, British Library, Royal 7. D. xxiv, fols. 82-168 163 n. 4 [repr. Parkes (1991) 160 n. 4]
• mss: 641 - Oxford, Bodleian Library, Junius 27 (S.C. 5139) 157-64 [repr. Parkes (1991) 154-61]