VALEYEV, K. G.; DZHALLADOVA, I. A. On one generalization of the averaging method. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 7, p. 906–911, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5080. Acesso em: 17 apr. 2025.