Institution
Bavarian State Library
575
Universitätsbibliothek der Humboldt-Universität zu Berlin
202
Zentralbibliothek Zürich
97
University Library of Regensburg
35
National Library of Sweden - Kungliga biblioteket
22
Saxon State and University Library
22
University Library of Greifswald
19
Bern University Library
17
Basel University Library
12
University of Graz
1