Institution
Bavarian State Library
12
Bibliothèque Nationale et Universitaire de Strasbourg
6
Universitätsbibliothek der Humboldt-Universität zu Berlin
4
Saxon State and University Library
2
Library service of the University of Strasbourg
2
Zentralbibliothek Zürich
2
Toulouse and Midi-Pyrénées Universities Libraries Network
1
University Library of Regensburg
1