Institution
University Library of Regensburg
149
Universitätsbibliothek der Humboldt-Universität zu Berlin
73
Bavarian State Library
65
Basel University Library
17
Bern University Library
12
University Library of Greifswald
11
University of Graz
1
The Swiss National Library
1
University Library Salzburg
1
University and Regional Library of Tyrol
1
Zentralbibliothek Zürich
1