Institution
University Library of Regensburg
15
Universitätsbibliothek der Humboldt-Universität zu Berlin
8
Bavarian State Library
7
Bern University Library
2
Zentralbibliothek Zürich
2
Library of the Academy of Sciences of the Czech Republic
1
National Library of Sweden - Kungliga biblioteket
1
Research Library Olomouc
1