Adamyan, V. M., Yu. M. Berezansky, A. N. Kochubei, S. A. Kuzhel', V. O. Marchenko, V. A. Mikhailets, L. P. Nizhnik, et al. “Myroslav L’vovych Horbachuk (on His 70th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 60, no. 4 (April 25, 2008): 439–442. Accessed April 26, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3166.