First World War
Centennial Committee

The Public Endowment for the Research on Central and Eastern European History and Society

The Institute of the 20th Century

Institute of Habsburg History


Arcanum Database Publishing Ltd.



Metropolitan Ervin Szabó Library

Institute and Museum of Military History


Hofmobiliendepot, Vienna

Imperial War Museums, London


Library of Congress, Washington D.C.


The Museum and Library of Hungarian Agriculture


MaNDA - Hungarian National Digital Archive and Film Institute

Hungarian National Museum


The Hungarian News Agency


Media Services and Support Trust Fund

National Széchényi Library

Soproni Museum


National Museum of Serbia, Belgrád

Zempléni Museum, Szerencs