Institution
University Library of Regensburg
19
Bavarian State Library
11
Universitätsbibliothek der Humboldt-Universität zu Berlin
9
University of Tartu Library
5
National Library of Sweden - Kungliga biblioteket
4
University Library in Bratislava
4
Basel University Library
2
Bibliothèque Nationale et Universitaire de Strasbourg
2
Uppsala University Library
2
National Library of the Czech Republic
1
National Library of Estonia
1
Library service of the University of Strasbourg
1