Khirina, A., & Soshnikova, O. (2024). Mykola Sumtsov - a figure in the context of time. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’, 38, 145-158. https://doi.org/10.26565/2227-6505-2024-38-14