Institution
University Library of Regensburg
20
Bavarian State Library
16
Basel University Library
15
Bern University Library
14
Zentralbibliothek Zürich
14
Saxon State and University Library
5
University of Graz
4
National Library of Sweden - Kungliga biblioteket
4
National Library of the Czech Republic
3
University Library Salzburg
2
Vienna University Library
2
University and Regional Library of Tyrol
1