Institution
University Library of Regensburg
70
Universitätsbibliothek der Humboldt-Universität zu Berlin
33
Bavarian State Library
14
Bibliothèque Nationale et Universitaire de Strasbourg
3
University and Regional Library of Tyrol
2
Zentralbibliothek Zürich
2
Toulouse and Midi-Pyrénées Universities Libraries Network
1
National Library of Sweden - Kungliga biblioteket
1
Bern University Library
1