Institution
University Library of Regensburg
312
Universitätsbibliothek der Humboldt-Universität zu Berlin
310
Bavarian State Library
160
Zentralbibliothek Zürich
159
Basel University Library
98
University and Regional Library of Tyrol
75
National Library of Sweden - Kungliga biblioteket
29
University Library of Greifswald
26
Uppsala University Library
8
Bern University Library
6
University Library Salzburg
6
University of Graz
3