Institution
University Library of Regensburg
465
Universitätsbibliothek der Humboldt-Universität zu Berlin
405
Bavarian State Library
259
University Library of Greifswald
40
Zentralbibliothek Zürich
6
University and Regional Library of Tyrol
4
University of Graz
3
Basel University Library
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1
University Library Salzburg
1