Institution
Bavarian State Library
10
Bibliothèque Nationale et Universitaire de Strasbourg
6
Universitätsbibliothek der Humboldt-Universität zu Berlin
5
University Library of Regensburg
4
Zentralbibliothek Zürich
3
Library of the Academy of Sciences of the Czech Republic
1
National Library of Sweden - Kungliga biblioteket
1
Library service of the University of Strasbourg
1