EDITORIAL BOARD, . Index of volume 77 of „Ukrainian Mathematical Journal”. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 77, n. 12, p. 748–752, 2025. DOI: 10.3842/umzh.v77i12.9670. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9670. Acesso em: 5 dec. 2025.