Institution
Saxon State and University Library
36
Bavarian State Library
23
University Library of Regensburg
14
Bibliothèque Nationale et Universitaire de Strasbourg
13
Library of the Academy of Sciences of the Czech Republic
7
Universitätsbibliothek der Humboldt-Universität zu Berlin
6
Zentralbibliothek Zürich
6
University of Graz
2
University Library of Greifswald
1
Library service of the University of Strasbourg
1