Institution
Bavarian State Library
18
University Library of Regensburg
11
Universitätsbibliothek der Humboldt-Universität zu Berlin
8
Bibliothèque Nationale et Universitaire de Strasbourg
6
Saxon State and University Library
6
Zentralbibliothek Zürich
6
Library service of the University of Strasbourg
4
University Library of Greifswald
1
University of Graz
1
National Library of Sweden - Kungliga biblioteket
1
University and Regional Library of Tyrol
1