Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
104
University Library of Regensburg
77
Bavarian State Library
50
Basel University Library
15
University Library of Greifswald
11
Bern University Library
10
Zentralbibliothek Zürich
4
The Swiss National Library
1
Saxon State and University Library
1
University and Regional Library of Tyrol
1