Institution
Bavarian State Library
86
University Library of Regensburg
82
Universitätsbibliothek der Humboldt-Universität zu Berlin
43
University Library of Greifswald
29
Zentralbibliothek Zürich
8
National Library of Sweden - Kungliga biblioteket
7
Saxon State and University Library
4
Basel University Library
2
University and Regional Library of Tyrol
1