Institution
National Library of the Czech Republic
18
National Library of Estonia
11
Universitätsbibliothek der Humboldt-Universität zu Berlin
11
University of Graz
4
University of Tartu Library
4
Bavarian State Library
3
Saxon State and University Library
3
Basel University Library
2
Moravian Library in Brno
2
University Library Salzburg
2
Research Library Olomouc
2
Library of the Academy of Sciences of the Czech Republic
1
National Library of Sweden - Kungliga biblioteket
1
National and University Library, Slovenia
1
Bern University Library
1