Institution
Bavarian State Library
117
University Library of Regensburg
65
Zentralbibliothek Zürich
56
Universitätsbibliothek der Humboldt-Universität zu Berlin
32
University Library of Greifswald
6
Bern University Library
5
University and Regional Library of Tyrol
2
University of Graz
1
Martin-Opitz Bibliothek Herne
1