Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
79
University Library of Regensburg
73
University and Regional Library of Tyrol
10
Bavarian State Library
6
The Swiss National Library
6
Library Am Guisanplatz
1
University of Graz
1
National Library of Estonia
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1
University Library Salzburg
1
Zentralbibliothek Zürich
1