Institution
University Library of Regensburg
194
Universitätsbibliothek der Humboldt-Universität zu Berlin
165
Bavarian State Library
104
Bibliothèque Nationale et Universitaire de Strasbourg
42
University Library of Greifswald
5
University of Graz
5
Bern University Library
5
Zentralbibliothek Zürich
5
National Library of Sweden - Kungliga biblioteket
4
University and Regional Library of Tyrol
4
Vienna City Library
3
Basel University Library
2
University Library Salzburg
2
Library service of the University of Strasbourg
2
The Swiss National Library
1