Institution
University Library of Regensburg
57
Universitätsbibliothek der Humboldt-Universität zu Berlin
46
Bavarian State Library
43
University Library of Greifswald
10
University of Graz
5
University and Regional Library of Tyrol
3
Zentralbibliothek Zürich
3
Basel University Library
1
National Library of Sweden - Kungliga biblioteket
1