Institution
Bavarian State Library
170
University Library of Regensburg
137
Universitätsbibliothek der Humboldt-Universität zu Berlin
101
University Library of Greifswald
77
Bern University Library
23
Basel University Library
18
Zentralbibliothek Zürich
11
Library Am Guisanplatz
9
Saxon State and University Library
7