Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
35
Zentralbibliothek Zürich
32
Saxon State and University Library
25
University Library of Regensburg
22
University Library of Greifswald
10
Bern University Library
10
Basel University Library
6
University Library Salzburg
4
University and Regional Library of Tyrol
3
Bavarian State Library
2
University of Graz
2
Vienna City Library
2