Institution
University Library of Regensburg
106
Universitätsbibliothek der Humboldt-Universität zu Berlin
88
Bavarian State Library
59
Library of the Academy of Sciences of the Czech Republic
57
Zentralbibliothek Zürich
7
Bibliothèque Nationale et Universitaire de Strasbourg
3
University and Regional Library of Tyrol
3
University Library of Greifswald
2
Toulouse and Midi-Pyrénées Universities Libraries Network
1