Source
Pickwoad and McKitterick, A Carolingian Manuscript... (2013)
Nicholas Pickwoad and Rosamond McKitterick (2013), “A Carolingian Manuscript Fragment from the Ninth Century in Amsterdam University Library, Used as the Binding for ‘Band 1 E 22'”, Quaerendo 43 (3), pp. 185–213.
Additional Reference
p. 195