Institution
Saxon State and University Library
16
Bavarian State Library
4
University Library of Regensburg
3
Universitätsbibliothek der Humboldt-Universität zu Berlin
2
Toulouse and Midi-Pyrénées Universities Libraries Network
1
Library of the Academy of Sciences of the Czech Republic
1
Bern University Library
1
Zentralbibliothek Zürich
1