Some files updated annually. DYABOLA (Dynamically Accumulating Database on Objects and Literature About Antiquity) provides citations to books, articles, and essays on classical, early Christian, Byzantine, early Medieval, and ancient Middle Eastern antiquities, art, and archaeology. To access the database, check the box marked "IP-Zugang" and click the Start button from the web site. Select British flag of "Realkatalog..." for English-language search interface and largest selection. There is no way to limit results to English language.