NESTERENKO, O. N.; PETROVA, I. L.; CHAIKOVS'KYI, A. V. On a property of moduli of smoothness with Jacobi weights. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 74, n. 4, p. 534–541, 2022. DOI: 10.37863/umzh.v74i4.7034. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7034. Acesso em: 8 dec. 2025.