KORENOVSKYI, A. O.; SHANIN, R. V. On a property of the arithmetic means of monotonous sequences. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 74, n. 4, p. 516–524, 2022. DOI: 10.37863/umzh.v74i4.7151. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7151. Acesso em: 8 dec. 2025.