COMINTERN /

Ф.545 - Fund 545. International Brigades of the Republican Army of Spain /

Ф.545,оп.2 - Inventory 2. Documents of the Central Military Administration of the International Brigades /

Ф.545,оп.2,д.89 - Case 89. Correspondence of the editorial board of the Polish volunteers of the international brigades "Dabrowszcak" and "Ochotnik wolnosci"