Institution
The Swiss National Library
306
Zentralbibliothek Zürich
137
Basel University Library
116
Bern University Library
81
University Library Salzburg
30
Saxon State and University Library
21
Bavarian State Library
17
Universitätsbibliothek der Humboldt-Universität zu Berlin
8
Library Am Guisanplatz
5
National Library of the Czech Republic
4
University Library of Regensburg
4
University and Regional Library of Tyrol
4
University of Graz
3
Moravian Library in Brno
2
Bibliotheken Schaffhausen
2
Vienna City Library
2
Martin-Opitz Bibliothek Herne
1
National Library of Estonia
1
Research Library Olomouc
1