Institution
University Library of Regensburg
39
Bavarian State Library
29
Universitätsbibliothek der Humboldt-Universität zu Berlin
16
Bibliothèque Nationale et Universitaire de Strasbourg
15
Library of the Academy of Sciences of the Czech Republic
10
University Library of Greifswald
3
Zentralbibliothek Zürich
3
University and Regional Library of Tyrol
2
Research Library Olomouc
2
Toulouse and Midi-Pyrénées Universities Libraries Network
1
University of Graz
1
Library service of the University of Strasbourg
1