Institution
University Library of Regensburg
24
Universitätsbibliothek der Humboldt-Universität zu Berlin
22
Bavarian State Library
11
University and Regional Library of Tyrol
2
University Library of Greifswald
1
University of Graz
1
Library of the Academy of Sciences of the Czech Republic
1
Research Library Olomouc
1
Zentralbibliothek Zürich
1