Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
130
University Library of Regensburg
80
Bavarian State Library
60
Basel University Library
15
University Library of Greifswald
13
Zentralbibliothek Zürich
8
Bern University Library
4
Saxon State and University Library
2
Bibliothèque Nationale et Universitaire de Strasbourg
1