Institution
Bavarian State Library
86
University Library of Regensburg
42
Universitätsbibliothek der Humboldt-Universität zu Berlin
14
Basel University Library
3
Bibliothèque Nationale et Universitaire de Strasbourg
3
University Library of Greifswald
3
Library of the Academy of Sciences of the Czech Republic
3
Zentralbibliothek Zürich
3
Saxon State and University Library
1