DYABOLA provides access to subject catalogs of publications on the history of art and the ancient world.
The most important is the Realkatalog des Deutschen ArchAologischen Instituts Rom, the most comprehensive database for classical archaeology, dating back to 1956. Indexes books, festschrift, journals, and collected works on antiquities, art, and archaeology in the Mediterranean world from antiquity through the early Medieval period. Check the box that says "IP-Access," then click "Start" button. You will see a list of the databases to which USC subscribes; click the flag for the language you want.