Institution
Bavarian State Library
273
Universitätsbibliothek der Humboldt-Universität zu Berlin
213
University Library of Regensburg
148
Zentralbibliothek Zürich
34
University Library of Greifswald
14
University and Regional Library of Tyrol
6
Basel University Library
5
University of Graz
5
National Library of Sweden - Kungliga biblioteket
2
Saxon State and University Library
2
Bern University Library
2
University Library Salzburg
2