Institution
University Library of Regensburg
633
Universitätsbibliothek der Humboldt-Universität zu Berlin
419
Bavarian State Library
74
Saxon State and University Library
66
Library of the Academy of Sciences of the Czech Republic
19
Basel University Library
18
Bern University Library
17
University Library of Greifswald
14
University and Regional Library of Tyrol
8
Zentralbibliothek Zürich
7
University of Graz
3
Martin-Opitz Bibliothek Herne
3
The Swiss National Library
3
Research Library Olomouc
2
Bibliothèque Nationale et Universitaire de Strasbourg
1
University Library Salzburg
1
University of Tartu Library
1