Institution
Zentralbibliothek Zürich
121
The Swiss National Library
44
Library service of the University of Strasbourg
11
Bern University Library
8
Basel University Library
4
Saxon State and University Library
3
University Library of Regensburg
3
University and Regional Library of Tyrol
3
Vienna University Library
2
Bavarian State Library
1
University Library of Greifswald
1
Bibliotheken Schaffhausen
1