The DAI compiles some of the most important bibliographies on archaeology: Archaeological Bibliography, Bibliography of the Archaeology of the Iberian Peninsula, Subject catalogue of the Roman-German Commission, and Bibliography of the Archaeology of Eurasia (completed bibliography). You are able to search through the Archaeological Bibliography free of charge at the website of the DAI. The Archaeological Bibliography is expanded daily by the departments in Rome, Athens, Istanbul and the head office in Berlin, and it comprises titles collected since 1956 (approx. 400,000 titles). As a result of the involvement of the Athens and Istanbul departments in compiling the bibliography (since spring 2006), considerably more Greek and Turkish journals and monographs have been described and made available for research, in view of the holdings of those libraries.