Institution
University Library of Regensburg
391
Universitätsbibliothek der Humboldt-Universität zu Berlin
341
Bavarian State Library
246
University Library of Greifswald
12
Zentralbibliothek Zürich
12
University and Regional Library of Tyrol
11
University of Graz
2
Vienna City Library
2
Basel University Library
1
Academic health library (Paris)
1
National Library of Sweden - Kungliga biblioteket
1
Saxon State and University Library
1
Bern University Library
1