Popek, Krzysztof. β€œThe Question of Christian Slavic Refugees and the Russian Occupation of the Principality of Bulgaria and Eastern Rumelia (1877–1879)”. Balcanica - Annual of the Institute for Balkan Studies, no. LIV (December 30, 2023): 65–81. Accessed May 12, 2024. https://balcanica.rs/index.php/journal/article/view/1355.