Institution
Library of the Academy of Sciences of the Czech Republic
14
National Library of the Czech Republic
6
Universitätsbibliothek der Humboldt-Universität zu Berlin
4
University Library in Bratislava
4
Moravian Library in Brno
3
Saxon State and University Library
3
Bavarian State Library
2
University Library of Regensburg
2
Library service of the University of Strasbourg
2
Research Library Olomouc
2
National Library of Estonia
1
Bern University Library
1
Zentralbibliothek Zürich
1