Institution
University Library of Regensburg
63
Universitätsbibliothek der Humboldt-Universität zu Berlin
32
Bavarian State Library
10
Basel University Library
7
Bern University Library
7
University Library of Greifswald
3
Zentralbibliothek Zürich
3
The Swiss National Library
2
Bibliothèque Nationale et Universitaire de Strasbourg
1
Library service of the University of Strasbourg
1