%A Keynes, Simon
%T The diplomas of King Æthelred 'The Unready' (978-1016) : a study in their use as historical evidence
%I Cambridge University Press
%D 1980
%S Cambridge studies in medieval life and thought / edited by G.G. Coulton
%V 3d ser., v. 13
%U https://ci.nii.ac.jp/ncid/BA04878134