University Library of Graz

From the Wikipedia page

The University Library of Graz is the largest scientific and public library in Styria and the third largest in Austria. It holds the right of legal deposit. It is part of the Karl Franzens University of Graz and consists of the main library, two faculty libraries (for law and social and economic sciences, and for theology) and several branch libraries and is open to the public.

The website, in German, is.