S. B. HEMBARS’KA. About marginal values of three-harmonic Poisson integral on the bound of the unit disk. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 7, p. 876–884, 2023. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6031. Acesso em: 5 dec. 2025.