KASHPIROVSKII, A. I.; TORBA, S. M. Characterization of the rate of convergence of one approximate method for the solution of an abstract Cauchy problem. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 4, p. 557–563, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3175. Acesso em: 27 apr. 2025.