Institution
Bavarian State Library
253
Universitätsbibliothek der Humboldt-Universität zu Berlin
210
University Library of Regensburg
178
Zentralbibliothek Zürich
43
University Library of Greifswald
6
University and Regional Library of Tyrol
5
Basel University Library
3
Bern University Library
3
Saxon State and University Library
2