Institution
Zentralbibliothek Zürich
186
Basel University Library
137
University Library of Regensburg
137
Bern University Library
124
The Swiss National Library
3
Bibliotheken Schaffhausen
3
Universitätsbibliothek der Humboldt-Universität zu Berlin
3
University and Regional Library of Tyrol
3
University of Graz
2