1. Vita Sturmi, see under Eigil
2. Whitelock, D. (ed.), English Historical Documents, I: c. 500–1042, 2nd edn, London (1979)
3. Willibald , English trans. C.H. Talbot , The Anglo-Saxon Missionaries in Germany, London (1954), pp. 25–62
4. Strabo Walahfrid , De Exordiis et Incrementis Quarundam in Observationis Ecclesiasticis Rerum, ed. A. Knoepfler , Munich (1890)
5. Strabo Walahfrid , English trans. A. Harting-Corrêa , Leiden (1995)