Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
932
University Library of Regensburg
192
Bavarian State Library
152
University Library of Greifswald
149
Saxon State and University Library
65
Vienna City Library
28
Bern University Library
13
Basel University Library
9
University of Graz
2
University and Regional Library of Tyrol
2
University Library Salzburg
1
Zentralbibliothek Zürich
1