Referenced in:

• facs: 836 - Köln (Cologne), Dombibliothek, 213 111 [fol. 1r], 112 [fols. 2v, 4v], 113 [fols. 11r, 36r]
• mss: 836 - Köln (Cologne), Dombibliothek, 213 110-16 [no. 18]