Institution
Bavarian State Library
83
University Library of Regensburg
55
Universitätsbibliothek der Humboldt-Universität zu Berlin
37
Basel University Library
10
Bern University Library
8
University Library of Greifswald
5
Zentralbibliothek Zürich
2
University of Graz
1
The Swiss National Library
1
University and Regional Library of Tyrol
1