Institution
Bavarian State Library
393
Universitätsbibliothek der Humboldt-Universität zu Berlin
116
University Library of Regensburg
101
Zentralbibliothek Zürich
30
University Library of Greifswald
11
Basel University Library
8
Bern University Library
8
Bibliothèque Nationale et Universitaire de Strasbourg
2
Saxon State and University Library
2
National Library of Sweden - Kungliga biblioteket
1
University and Regional Library of Tyrol
1
Uppsala University Library
1