Meta-search interface which allows you to search multiple library catalogs and book trade vendors from Germany, Austria, Switzerland, and other countries. Interface in English, German, and other languages.
A union catalog of the records of National Library of Germany, the Deutsche Nationalbibliothek. The database includes the holdings of in Leipzig since 1913 and in Frankfurt am Main since 1945, and the Deutsches Musikarchiv Berlin.
A union catalog GVK of the 7 German provinces forming the GBV. This database consists of more than 17.5 million titles from books, conference proceedings, periodicals, dissertations, microfilms and electronic resources with over 23 million holdings.