Institution
Bavarian State Library
27
Zentralbibliothek Zürich
19
Saxon State and University Library
11
Universitätsbibliothek der Humboldt-Universität zu Berlin
10
University Library of Regensburg
6
Bern University Library
5
National Library of Sweden - Kungliga biblioteket
2
Basel University Library
1
Toulouse and Midi-Pyrénées Universities Libraries Network
1
Library service of the University of Strasbourg
1
University and Regional Library of Tyrol
1