Institution
Bavarian State Library
298
University Library of Regensburg
132
University Library of Greifswald
61
Basel University Library
56
Universitätsbibliothek der Humboldt-Universität zu Berlin
52
Zentralbibliothek Zürich
32
Bern University Library
28
University and Regional Library of Tyrol
3
The Swiss National Library
2
Bibliothèque Nationale et Universitaire de Strasbourg
1