Institution
Saxon State and University Library
6
Bavarian State Library
3
Universitätsbibliothek der Humboldt-Universität zu Berlin
3
University Library of Regensburg
2
Library service of the University of Strasbourg
2
Bibliothèque Nationale et Universitaire de Strasbourg
1
National Library of Sweden - Kungliga biblioteket
1
Zentralbibliothek Zürich
1