Institution
National Library of Estonia
23
Universitätsbibliothek der Humboldt-Universität zu Berlin
10
University of Tartu Library
8
Bavarian State Library
6
University Library of Greifswald
6
National Library of Sweden - Kungliga biblioteket
6
Bibliothèque Nationale et Universitaire de Strasbourg
4
National Library of the Czech Republic
4
Zentralbibliothek Zürich
4
Library service of the University of Strasbourg
3
Basel University Library
2
National and University Library, Slovenia
2
Moravian Library in Brno
1
University Library of Regensburg
1
Research Library Olomouc
1