Institution
Bavarian State Library
941
University Library of Regensburg
593
Universitätsbibliothek der Humboldt-Universität zu Berlin
139
Zentralbibliothek Zürich
121
Bern University Library
27
The Swiss National Library
22
University Library of Greifswald
13
Saxon State and University Library
13
Basel University Library
9
Bibliothèque Nationale et Universitaire de Strasbourg
3