AKSYONOVA , N.; VOVK, O. The 10th All-Ukrainian Scientific Conference “Theoretical and Applied Aspects of Biographical Studies. The Yefymenko Family of Historians”. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’, v. 41, p. 176-178, 8 Jan. 2026.