Hedo, Anna, and Oleg Ivaniuk. “‘Letters from Bulgaria’: Bulgarian Problems on the Pages of The Kyiv Rada Magazine (1906-1914)”. TEKA Commission of Polish-Ukrainian Cultural Ties 6, no. 17 (December 20, 2022). Accessed August 25, 2024. https://czasopisma.kul.pl/index.php/teka/article/view/14597.