Phillipson, D.W. (ed.) The Monuments of Aksum, an illustrated account. based on the work in A.D. 1906 of the Deutsche Aksum-Expedition by Enno Littmann, Daniel Krenker and Theodor von Lüpke (Berlin 1913) translated by R. Bedlow and including previously unpublished photographs from the Staatsbibliothek zu Berlin. London [?] Addis Ababa [?]: Addis Ababa University Press in collaboration with the British Institute in Aast Africa, 1997.
