KOVALENKO, I. L.; LITVIN, A. I.; SIMONZHENKOV, S. D. On the calculation of certain singular integrals. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 8, p. 1174–1176, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5917. Acesso em: 14 apr. 2025.