Institution
Bavarian State Library
664
University Library of Regensburg
324
Universitätsbibliothek der Humboldt-Universität zu Berlin
206
University Library of Greifswald
134
Basel University Library
88
Bern University Library
54
Zentralbibliothek Zürich
17
Bibliothèque Nationale et Universitaire de Strasbourg
6
Saxon State and University Library
3
University of Graz
1
Martin-Opitz Bibliothek Herne
1
The Swiss National Library
1
University Library Salzburg
1