Institution
Bavarian State Library
77
Universitätsbibliothek der Humboldt-Universität zu Berlin
47
University Library of Regensburg
40
Zentralbibliothek Zürich
20
University Library of Greifswald
9
National Library of Sweden - Kungliga biblioteket
3
University and Regional Library of Tyrol
2
Basel University Library
1
Bern University Library
1
University Library Salzburg
1