Institution
University Library of Regensburg
136
Universitätsbibliothek der Humboldt-Universität zu Berlin
75
Bavarian State Library
31
University of Graz
6
Zentralbibliothek Zürich
4
Library of the Academy of Sciences of the Czech Republic
2
Research Library Olomouc
2
Basel University Library
1
Toulouse and Midi-Pyrénées Universities Libraries Network
1
University Library of Greifswald
1
National Library of Estonia
1
National Library of Sweden - Kungliga biblioteket
1