CLASP Handlist Book: Arno Borst (ed. Comm.) Writings on computistics in the Franconian Empire from 721 to 818 I Hannover, Hahnsche Buchhandlung 2006 (Monumenta Germaniae Historica. Sources on the intellectual history of the Middle Ages 21) Manuscript references in: Cologne, Archbishop's Diocesan and Cathedral Library, 103, p. 238
A Consolidated Library of Anglo-Saxon Poetry