Institution
Bavarian State Library
117
Universitätsbibliothek der Humboldt-Universität zu Berlin
44
Zentralbibliothek Zürich
35
University Library of Regensburg
23
Bern University Library
8
National Library of Sweden - Kungliga biblioteket
6
University Library of Greifswald
5
Basel University Library
3
University of Graz
1
Saxon State and University Library
1