Institution
Bavarian State Library
661
University Library of Regensburg
320
Universitätsbibliothek der Humboldt-Universität zu Berlin
173
University Library of Greifswald
134
Basel University Library
87
Bern University Library
49
Bibliothèque Nationale et Universitaire de Strasbourg
4
Saxon State and University Library
3
Zentralbibliothek Zürich
3
University of Graz
1
The Swiss National Library
1
University Library Salzburg
1