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

Ф.545,оп.3 - Inventory 3. Documents of 35 and 45 divisions, 10-15, 129 international brigades and formations of the Republican army of Spain /

Ф.545,оп.3,д.521 - Case 521. Clippings from newspapers in the USA, England and other countries about the Spanish Civil War and the participation of the 15th brigade in it