Institution
Bavarian State Library
418
University Library of Regensburg
302
Universitätsbibliothek der Humboldt-Universität zu Berlin
93
Basel University Library
74
Bern University Library
52
University Library of Greifswald
6
Zentralbibliothek Zürich
5
The Swiss National Library
2
Library Am Guisanplatz
1
University and Regional Library of Tyrol
1