MISHURA, Yu. S.; SHEVCHENKO, H. M. Euler Approximations of Solutions of Abstract Equations and Their Applications in the Theory of Semigroups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 3, p. 399–410, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3762. Acesso em: 7 dec. 2025.