Tác giả: Jan Rydel

Dr. Burkhard Olschowsky: Historian, research associate at the Federal Institute of Culture and History of Germans in Eastern Europe (Oldenburg), expert of German and Polish modern history; Bundesinstitut BKGE PD Dr. Tobias Weger: Historian, research associate at the Institute for German Culture and History of Southeastern Europe (Munich), expert of Czech and Romanian modern history, Institut für deutsche Kultur und Geschichte Südosteuropas Prof. Piotr Juszkiewicz: Art historian, Department of the History and Theory of Research on Art at the University of Poznań, expert of 20th-century art, art criticism XVIII-XX century, movie and new media Prof. Jan Rydel: Historian, expert of military history in the 19th and 20th centuries, history of Germany and Austria, University of Kraków