Institution
Bavarian State Library
47
University Library of Regensburg
40
Universitätsbibliothek der Humboldt-Universität zu Berlin
37
Zentralbibliothek Zürich
14
Basel University Library
3
University and Regional Library of Tyrol
3
University Library of Greifswald
2
Saxon State and University Library
1
University Library Salzburg
1