Institution
University Library of Regensburg
20
Universitätsbibliothek der Humboldt-Universität zu Berlin
13
Bavarian State Library
10
Basel University Library
8
Bern University Library
7
Zentralbibliothek Zürich
7
Bibliothèque Nationale et Universitaire de Strasbourg
1
University Library of Greifswald
1
The Swiss National Library
1
Saxon State and University Library
1
Bibliotheken Schaffhausen
1