“The Epistolary of D. I. Yavornitsky As a Reflection of Development of the Ukrainian Language in Katerinoslav Region”. Philological Studies: Scientific Bulletin of Kryvyi Rih State Pedagogical University 9, no. 2 (December 3, 2013): 289–297. Accessed December 5, 2025. https://journal.kdpu.edu.ua/filstd/article/view/483.