SAMOILENKO, A. M. et al. Oleksandr Andriiovych Boichuk (on his 70th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 7, p. 1011–1012, 2020. DOI: 10.37863/umzh.v72i7.6189. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6189. Acesso em: 5 dec. 2025.