Institution
University Library of Regensburg
17
Universitätsbibliothek der Humboldt-Universität zu Berlin
7
Library of the Academy of Sciences of the Czech Republic
5
Library Am Guisanplatz
3
National Library of the Czech Republic
2
National Library of Sweden - Kungliga biblioteket
1
National Library of Technology (Czech Republic)
1
National and University Library, Slovenia
1
Research Library Olomouc
1