Institution
University Library of Regensburg
97
Universitätsbibliothek der Humboldt-Universität zu Berlin
82
Bibliothèque Nationale et Universitaire de Strasbourg
16
Basel University Library
13
Bavarian State Library
13
Bern University Library
13
Library service of the University of Strasbourg
8
University Library of Greifswald
5
Bibliotheken Schaffhausen
3
Zentralbibliothek Zürich
3
The Swiss National Library
2