Редколегія. “Oleksandr Mykolaiovych Sharkovs’kyi (on His 85th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 74, no. 1 (January 24, 2022): 137 - 140. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/7105.