Institution
University Library of Regensburg
24
Bavarian State Library
14
Universitätsbibliothek der Humboldt-Universität zu Berlin
14
Zentralbibliothek Zürich
14
University Library of Greifswald
8
Saxon State and University Library
5
Basel University Library
3
Bern University Library
2
University and Regional Library of Tyrol
2