Institution
University Library of Regensburg
109
Bavarian State Library
66
Universitätsbibliothek der Humboldt-Universität zu Berlin
59
University Library of Greifswald
53
Basel University Library
19
Bern University Library
12
Zentralbibliothek Zürich
10
Saxon State and University Library
8
University and Regional Library of Tyrol
5
The Swiss National Library
3
Bibliotheken Schaffhausen
2
University of Graz
1