Institution
Bavarian State Library
15
University Library of Regensburg
6
Universitätsbibliothek der Humboldt-Universität zu Berlin
5
Zentralbibliothek Zürich
3
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1
University Library Salzburg
1
University and Regional Library of Tyrol
1
Vienna City Library
1