Institution
Bavarian State Library
24
Universitätsbibliothek der Humboldt-Universität zu Berlin
11
Basel University Library
8
University Library of Greifswald
5
University Library of Regensburg
5
Zentralbibliothek Zürich
5
National Library of Sweden - Kungliga biblioteket
2
Bern University Library
2
Uppsala University Library
2