Lund, N. (2013) “Eric Knibbs: Ansgar, Rimbert and the Forged Foundations of Hamburg-Bremen. (Church, faith and culture in the medieval West). Ashgate, London, 2011”., Historisk Tidsskrift, 112(1). Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/56562 (Set: 20 januar 2026).