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.448 - Case 448. Letter from the Secretary of the Austrian Communist Party Johann Koplenig to the Austrian communist volunteers in Spain