Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
73
University Library of Regensburg
67
Bavarian State Library
37
Bern University Library
23
Basel University Library
4
University Library of Greifswald
4
Zentralbibliothek Zürich
4
National Library of Sweden - Kungliga biblioteket
2
Library Am Guisanplatz
1
Martin-Opitz Bibliothek Herne
1
Saxon State and University Library
1
Bibliotheken Schaffhausen
1