Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
23
Bavarian State Library
22
University Library of Regensburg
21
Bern University Library
19
Basel University Library
15
University Library of Greifswald
14
Zentralbibliothek Zürich
14
University of Graz
3
Saxon State and University Library
2
University and Regional Library of Tyrol
2
The Swiss National Library
1
University Library Salzburg
1