Institution
University Library of Regensburg
49
Universitätsbibliothek der Humboldt-Universität zu Berlin
36
Saxon State and University Library
22
Bavarian State Library
18
Bibliothèque Nationale et Universitaire de Strasbourg
4
University of Graz
3
Toulouse and Midi-Pyrénées Universities Libraries Network
2
National Library of Sweden - Kungliga biblioteket
2
Basel University Library
1
Library service of the University of Strasbourg
1
Zentralbibliothek Zürich
1