Institution
Basel University Library
3
University Library of Greifswald
3
Universitätsbibliothek der Humboldt-Universität zu Berlin
3
University Library Salzburg
3
Bavarian State Library
2
Moravian Library in Brno
2
Saxon State and University Library
2
University of Tartu Library
2
Zentralbibliothek Zürich
2
University of Graz
1