Institution
Bavarian State Library
36
University Library of Regensburg
20
Universitätsbibliothek der Humboldt-Universität zu Berlin
18
Zentralbibliothek Zürich
11
Saxon State and University Library
7
National Library of Sweden - Kungliga biblioteket
6
National and University Library, Slovenia
2
Basel University Library
1
University Library Salzburg
1
Vienna City Library
1