Referenced in:

• st: 258 - Exeter, Cathedral Library, 3507 50 n. 61b
• st: 475 - London, British Library, Royal 8. C. iii 49-50 [repr. Bullough (1991) 19]
• st: 921 - Rouen, Bibliothèque municipale, 274 (Y. 6) (the ‘Sacramentary of Robert of Jumièges’) 50 n. 61b