Institution
Bavarian State Library
160
University Library of Regensburg
89
Universitätsbibliothek der Humboldt-Universität zu Berlin
68
Zentralbibliothek Zürich
16
University Library of Greifswald
9
University and Regional Library of Tyrol
7
University of Graz
4
Basel University Library
2
Bern University Library
2
National Library of Sweden - Kungliga biblioteket
1