Institution
University Library of Regensburg
197
Universitätsbibliothek der Humboldt-Universität zu Berlin
127
Bavarian State Library
82
Basel University Library
29
University Library of Greifswald
26
Bern University Library
23
Zentralbibliothek Zürich
9
Bibliothèque Nationale et Universitaire de Strasbourg
1
The Swiss National Library
1