Institution
University Library of Regensburg
9
Zentralbibliothek Zürich
8
Bavarian State Library
7
Universitätsbibliothek der Humboldt-Universität zu Berlin
6
University Library of Greifswald
3
National Library of Sweden - Kungliga biblioteket
3
University and Regional Library of Tyrol
3
Basel University Library
2
Bern University Library
1
Uppsala University Library
1