Institution
Bavarian State Library
113
University Library of Regensburg
50
Universitätsbibliothek der Humboldt-Universität zu Berlin
33
Zentralbibliothek Zürich
17
Bern University Library
3
University Library of Greifswald
2
University of Graz
2
University and Regional Library of Tyrol
2
Basel University Library
1
University Library Salzburg
1