Institution
Bavarian State Library
11
University Library of Regensburg
7
Universitätsbibliothek der Humboldt-Universität zu Berlin
5
Basel University Library
2
University Library of Greifswald
2
National Library of Sweden - Kungliga biblioteket
2
Bern University Library
2
Zentralbibliothek Zürich
2
University and Regional Library of Tyrol
1