Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
21
University Library of Regensburg
21
Bavarian State Library
12
Zentralbibliothek Zürich
8
Bibliothèque Nationale et Universitaire de Strasbourg
3
Basel University Library
2
University of Graz
2
Library service of the University of Strasbourg
2
University Library of Greifswald
1
The Swiss National Library
1
Saxon State and University Library
1
University and Regional Library of Tyrol
1