ZHYHALLO, K. M.; KHARKEVYCH, Yu. I. Complete Asymptotics of the Deviation of a Class of Differentiable Functions from the Set of Their Harmonic Poisson Integrals. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 1, p. 43–52, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4038. Acesso em: 14 apr. 2025.