Institution
Bavarian State Library
67
University Library of Regensburg
26
Universitätsbibliothek der Humboldt-Universität zu Berlin
15
Zentralbibliothek Zürich
14
Toulouse and Midi-Pyrénées Universities Libraries Network
8
Basel University Library
5
Bibliothèque Nationale et Universitaire de Strasbourg
4
Library of the Academy of Sciences of the Czech Republic
4
Saxon State and University Library
4
University Library of Greifswald
2
University of Graz
1
Bern University Library
1
Library service of the University of Strasbourg
1