Institution
University Library of Regensburg
207
Universitätsbibliothek der Humboldt-Universität zu Berlin
87
Bavarian State Library
76
Bern University Library
25
University Library of Greifswald
23
Basel University Library
19
Zentralbibliothek Zürich
5
Bibliothèque Nationale et Universitaire de Strasbourg
2
The Swiss National Library
1
University and Regional Library of Tyrol
1