Institution
Saxon State and University Library
113
Bavarian State Library
67
Universitätsbibliothek der Humboldt-Universität zu Berlin
44
University Library of Regensburg
44
Zentralbibliothek Zürich
19
Basel University Library
8
Bern University Library
2
University Library of Greifswald
1
National Library of Sweden - Kungliga biblioteket
1
University Library Salzburg
1