Institution
Bavarian State Library
12
Toulouse and Midi-Pyrénées Universities Libraries Network
6
Universitätsbibliothek der Humboldt-Universität zu Berlin
6
University Library of Regensburg
4
National Library of Sweden - Kungliga biblioteket
3
Zentralbibliothek Zürich
2
University Library of Greifswald
1
Library of the Academy of Sciences of the Czech Republic
1
University and Regional Library of Tyrol
1