Institution
Zentralbibliothek Zürich
67
Universitätsbibliothek der Humboldt-Universität zu Berlin
61
Bavarian State Library
55
Basel University Library
31
University Library of Regensburg
17
National Library of Sweden - Kungliga biblioteket
16
Uppsala University Library
9
Bern University Library
7
University Library of Greifswald
3
Saxon State and University Library
1