Institution
Saxon State and University Library
690
University Library of Greifswald
575
Basel University Library
527
Bavarian State Library
440
University Library of Regensburg
306
Zentralbibliothek Zürich
159
Universitätsbibliothek der Humboldt-Universität zu Berlin
66
Bern University Library
25
Martin-Opitz Bibliothek Herne
7
Bibliothèque Nationale et Universitaire de Strasbourg
4
University Library Salzburg
1
University of Tartu Library
1