Referenced in:

• st: 308 - London, British Library, Cotton Caligula A. vii, fols. 11-178 19-20 and n. 5
• st: 330 - London, British Library, Cotton Domitian ix, fol. 11 16-17 and 17 n. 1 [repr. Whitelock (1981b) no. II]
• st: 509 - London, Lambeth Palace Library, 200, fols. 66-113 30 and n. 6