Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
378
University Library of Regensburg
346
Bavarian State Library
292
Bern University Library
23
Basel University Library
14
University Library of Greifswald
11
Uppsala University Library
11
National Library of Sweden - Kungliga biblioteket
9
University and Regional Library of Tyrol
7
Zentralbibliothek Zürich
4
Saxon State and University Library
2