@book{UBHD-1120290, editor={Grierson, Philip}, title={Leo III to Michael III}, subtitle={(717 - 867)}, address={Washington}, year={1973}, pages={IX, 470, XXIX S.}, language={eng}, isbn={0-88402-012-6 and 978-0-88402-012-7}, library={UB [Signatur: 67 C 151::3:1] ; AC [Signatur: M 22::3.1] ; KU [Signatur: Khw 2017::I]}, }