Institution
University Library of Regensburg
87
Universitätsbibliothek der Humboldt-Universität zu Berlin
83
Bavarian State Library
73
University and Regional Library of Tyrol
12
University of Graz
11
Zentralbibliothek Zürich
5
University Library of Greifswald
2
Bern University Library
2
Basel University Library
1
Saxon State and University Library
1
University Library Salzburg
1