Institution
University Library of Regensburg
52
Bavarian State Library
45
Zentralbibliothek Zürich
19
Universitätsbibliothek der Humboldt-Universität zu Berlin
15
University Library of Greifswald
6
Bern University Library
3
Library service of the University of Strasbourg
3
Basel University Library
2
Martin-Opitz Bibliothek Herne
2
University and Regional Library of Tyrol
2