Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
25
Bavarian State Library
21
Zentralbibliothek Zürich
5
University Library of Greifswald
2
Basel University Library
1
Toulouse and Midi-Pyrénées Universities Libraries Network
1
University of Graz
1
The Swiss National Library
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1
University Library of Regensburg
1
University and Regional Library of Tyrol
1