Institution
Bibliothèque Nationale et Universitaire de Strasbourg
10
University of Graz
8
Universitätsbibliothek der Humboldt-Universität zu Berlin
8
Bavarian State Library
7
University Library of Greifswald
6
Saxon State and University Library
5
Basel University Library
4
University and Regional Library of Tyrol
3
National Library of Sweden - Kungliga biblioteket
2
University Library of Regensburg
2
University Library Salzburg
2
Zentralbibliothek Zürich
2
Bern University Library
1
Vienna University Library
1