RT Article T1 "Ubi est illud...?" JF Archivum latinitatis medii aevi SP 51 OP 51 A1 Baxter, James Houston 1894-1973 LA Undetermined PB Droz YR 1924 UL https://www.ixtheo.de/Record/1827276673 K1 Augustinus, Aurelius : Heiliger : 354-430 : Epistulae