Institution
University Library of Greifswald
44
University Library of Regensburg
16
Universitätsbibliothek der Humboldt-Universität zu Berlin
12
Bavarian State Library
2
Zentralbibliothek Zürich
2
Basel University Library
1
University of Graz
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1