Institution
Bavarian State Library
12
University Library of Regensburg
7
Saxon State and University Library
5
Bibliothèque Nationale et Universitaire de Strasbourg
4
University of Graz
4
Universitätsbibliothek der Humboldt-Universität zu Berlin
4
Library service of the University of Strasbourg
2
Zentralbibliothek Zürich
2
Library of the Academy of Sciences of the Czech Republic
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1
University and Regional Library of Tyrol
1