Lukovsky , I. A., V. L. Makarov, M. O. Perestyuk, A. M. Timokha, O. A. Boichuk, V. Ya. Gutlyanskii, A. N. Kochubey, et al. “Ihor Oleksandrovych Shevchuk (on His 75th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 74, no. 4 (May 19, 2022): 439–442. Accessed December 8, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/7139.