Institution
Bavarian State Library
48
Universitätsbibliothek der Humboldt-Universität zu Berlin
28
University Library of Regensburg
25
Zentralbibliothek Zürich
9
Saxon State and University Library
7
National Library of Sweden - Kungliga biblioteket
4
Bern University Library
3
Basel University Library
1
Academic health library (Paris)
1
University of Graz
1
National Library of Estonia
1
University Library Salzburg
1