ABRAMOV, Vyacheslav M. Classes of functions in the set of circulant matrices and their characterization. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 77, n. 11, p. 692–693, 2025. DOI: 10.3842/umzh.v77i11.9230. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9230. Acesso em: 5 dec. 2025.