Institution
Library of the Academy of Sciences of the Czech Republic
78
National Library of Sweden - Kungliga biblioteket
54
Bavarian State Library
48
University of Tartu Library
30
National Library of Estonia
17
Universitätsbibliothek der Humboldt-Universität zu Berlin
16
The Swiss National Library
12
Moravian Library in Brno
2
Bern University Library
2
University Library of Regensburg
2
Umeå University Library
1