Institution
University Library of Regensburg
34
Universitätsbibliothek der Humboldt-Universität zu Berlin
29
Bavarian State Library
22
Zentralbibliothek Zürich
13
Bern University Library
4
Academic health library (Paris)
2
Library service of the University of Strasbourg
2
Basel University Library
1
University of Graz
1
National Library of Sweden - Kungliga biblioteket
1