Institution
University Library of Regensburg
60
Universitätsbibliothek der Humboldt-Universität zu Berlin
57
Bavarian State Library
53
Zentralbibliothek Zürich
12
University and Regional Library of Tyrol
5
University of Graz
4
University Library of Greifswald
3
Bern University Library
3
Basel University Library
2
Saxon State and University Library
2