Institution
University Library of Regensburg
67
Bavarian State Library
55
Universitätsbibliothek der Humboldt-Universität zu Berlin
47
University Library of Greifswald
9
Zentralbibliothek Zürich
8
University and Regional Library of Tyrol
7
University of Graz
2
University Library Salzburg
2
Saxon State and University Library
1