GERUS, O. F. On the modulus of continuity of solid derivatives of a Cauchy-type integral. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 4, p. 476–484, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4917. Acesso em: 5 dec. 2025.