Institution
Bavarian State Library
12
University Library of Regensburg
11
Zentralbibliothek Zürich
11
Basel University Library
9
University Library Salzburg
7
Saxon State and University Library
6
University and Regional Library of Tyrol
4
University of Graz
3
National Library of the Czech Republic
3
Bern University Library
3
Universitätsbibliothek der Humboldt-Universität zu Berlin
3
National Library of Estonia
1
National Library of Sweden - Kungliga biblioteket
1