Institution
University Library of Regensburg
267
Universitätsbibliothek der Humboldt-Universität zu Berlin
235
Bavarian State Library
132
Basel University Library
58
Bern University Library
44
Zentralbibliothek Zürich
10
Saxon State and University Library
7
University Library of Greifswald
6
University and Regional Library of Tyrol
6
The Swiss National Library
1
University Library Salzburg
1