Institution
University Library of Regensburg
67
Universitätsbibliothek der Humboldt-Universität zu Berlin
50
Bavarian State Library
47
Basel University Library
10
Bern University Library
10
The Swiss National Library
4
Library Am Guisanplatz
1
University Library of Greifswald
1
Saxon State and University Library
1
Zentralbibliothek Zürich
1