Institution
University Library of Regensburg
233
Universitätsbibliothek der Humboldt-Universität zu Berlin
62
Bavarian State Library
40
University Library of Greifswald
27
Zentralbibliothek Zürich
23
University and Regional Library of Tyrol
12
Bern University Library
7
Basel University Library
4
University of Graz
1