Jan Ferák a ti druzí (John Ferak and the others of the Czechoslovak brigade, pilots and aircraft in the Civil War in Spain 1936-1939)

Ceskoslovenski interbrigadisté, letci a letouny v obcanské válce ve Spanielsku 1936-1939 (John Ferak and the others of the Czechoslovak brigade, pilots and aircraft in the Civil War in Spain 1936-1939

Within the International Brigades in Spain, fought more than 2,200 Czechoslovak citizens. Among the foreign volunteers they were eighth largest contingent - the French, Italians, Poles, Americans, Germans, Yugoslavs and Belgians.
In addition to infantry, artillery, tank drivers and health professionals were among them pilots. Names like Ferak, Bolfík, King, Vejvoda, John, Gabula, Soutek, Talaš and once more emphasized the communist propaganda